Fat Track Gold

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    Fat Track Gold


    I have had these digital calipers for a while now. I still can't get a consistant measurement using these. Thats why I prefer the mirror. Anyway, there is a booklet that came with it that is called "Improve Your Measuring Skill". It has a section called "Determine your ideal weight with the desired bodfat percentage"

    The example is this,

    Assume you have the following data:

    Body fat percentage: 24.5
    Body Weight: 165 pounds
    Desired body fat percentage: 20

    Your ideal weight can be determined as follows:

    (100-current bodyfat%)/(100- Desired bodyfat %)XCurrent Weight
    =(100-24.5)/(100-20)x165
    =155.7 pounds

    I can not figure out how they came out with 155.7!!!!

    I want to figure out mine. I have no need to be super lean and for me 10% bodyfat would be spectacular. Even 14% would be great!. So if I was to get to 10% what would be my ideal bodyweight?

    I am at 18% bodyfat, guessing by my several trys with this product!. I have had it for about 5 years!. I don't really trust it, but I want to figure out this math problem. So my current weight is 232 at 18% bodyfat, 5'10", not that my height matters, I just thought I would throw that in...Can anyone help me figure this out?

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    Anyone else as confused as me by this math formula?. Maybe some of the science nerds can help. I know there are few on here and they have to be good at figuring stuff like this out!
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    T-Bone,

    For what it's worth, I've heard that the spring used in those calipers is what causes consistency problems. I use a plastic Accu-Measure and have no problems getting consistent readings with that. As for the math problem:
    Quote Originally Posted by T-Bone View Post
    Assume you have the following data:

    Body fat percentage: 24.5
    Body Weight: 165 pounds
    Desired body fat percentage: 20

    Your ideal weight can be determined as follows:

    (100-current bodyfat%)/(100- Desired bodyfat %)XCurrent Weight
    =(100-24.5)/(100-20)x165
    =155.7 pounds

    I can not figure out how they came out with 155.7!!!!
    I worked through it and came up with the same answer. Here's how:

    They give the formula of:
    (100-current bodyfat%)/(100-Desired bodyfat%)X Current weight.

    With the values given of:
    Current bodyfat% = 24.5
    Desired bodyfat% = 20
    Current weight = 165

    You have to work in the parenthesis first.

    so, the first parenthesis is:
    (100-current bodyfat%) which is:
    (100-24.5) this gives us: 75.5

    The next parenthesis is:
    (100-Desired bodyfat%) which is:
    (100-20) this gives us: 80

    OK, so now that you have those values, you can plug them in:

    (100-current bodyfat%)/(100-Desired bodyfat%)X Current weight. Which works out to be:

    75.5 divided by 80, multiplied by 165
    75.5 divided by 80 = 0.94375

    multiply 0.94375 by 165, and you get:

    155.71875 or simply: 155.7


    There you go, hope I broke it down for you easy to understand like.

    Quote Originally Posted by T-Bone View Post
    I want to figure out mine. I have no need to be super lean and for me 10% bodyfat would be spectacular. Even 14% would be great!. So if I was to get to 10% what would be my ideal bodyweight?

    I am at 18% bodyfat, guessing by my several trys with this product!. I have had it for about 5 years!. I don't really trust it, but I want to figure out this math problem. So my current weight is 232 at 18% bodyfat, 5'10", not that my height matters, I just thought I would throw that in...Can anyone help me figure this out?
    Ok, let's try yours:

    Current bodyfat% = 18
    Desired bodyfat% = 10
    Current weight = 232

    (100-18) divided by (100-10) multiplied by 232
    82 divided by 90 multiplied by 232
    0.91111 multiplied by 232 = 211.37
    or simply: 211.4


    SOOOOOO, is that forumula useful/correct? I dunno, I'd have to look at my references, but I just wanted to chime in and help you with the math problem, because I HATE when I can't figure out how someone did something!

    Hope that helps you out man, I'm tired from all the typing! lol

    -Lifting
    •   
       

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    Quote Originally Posted by LiftingFit View Post
    T-Bone,

    For what it's worth, I've heard that the spring used in those calipers is what causes consistency problems. I use a plastic Accu-Measure and have no problems getting consistent readings with that. As for the math problem:


    I worked through it and came up with the same answer. Here's how:

    They give the formula of:
    (100-current bodyfat%)/(100-Desired bodyfat%)X Current weight.

    With the values given of:
    Current bodyfat% = 24.5
    Desired bodyfat% = 20
    Current weight = 165

    You have to work in the parenthesis first.

    so, the first parenthesis is:
    (100-current bodyfat%) which is:
    (100-24.5) this gives us: 75.5

    The next parenthesis is:
    (100-Desired bodyfat%) which is:
    (100-20) this gives us: 80

    OK, so now that you have those values, you can plug them in:

    (100-current bodyfat%)/(100-Desired bodyfat%)X Current weight. Which works out to be:

    75.5 divided by 80, multiplied by 165
    75.5 divided by 80 = 0.94375

    multiply 0.94375 by 165, and you get:

    155.71875 or simply: 155.7


    There you go, hope I broke it down for you easy to understand like.



    Ok, let's try yours:

    Current bodyfat% = 18
    Desired bodyfat% = 10
    Current weight = 232

    (100-18) divided by (100-10) multiplied by 232
    82 divided by 90 multiplied by 232
    0.91111 multiplied by 232 = 211.37
    or simply: 211.4


    SOOOOOO, is that forumula useful/correct? I dunno, I'd have to look at my references, but I just wanted to chime in and help you with the math problem, because I HATE when I can't figure out how someone did something!

    Hope that helps you out man, I'm tired from all the typing! lol

    -Lifting


    Thanks a lot!!. I really get stuck on math problems. Me and math just don't mix. Maybe its just the way people explain things, I have a hard time understanding unless things are explained in a way I understand. Thanks though, I understand it now a lot better.

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