# Percentage between two numbers

#### xNICK

##### New member
Hey, So I need to know what number is 75% between 2 lines? Line 1 = 124.464 and Line 2 = 124.444. Currently I use
Line 1 + Line 2 / 2 = 50% or (124.454) Then (124.454 + Line 1) / 2 = 75% or (124.459). Is there a easier or better way to get these results, cause this formula can't get percents like 60% or 40%.
PS: Wasn't sure what topic to put this under, first time here.
Thank you for your time and help!

#### MarkFL

Suppose you have two real numbers $$x_1$$ and $$x_2$$ with $$x_1<x_2$$. And we want to find a third number $$x_p$$ that is a part $$p$$ (where $$0\le p\le1$$) of the distance from $$x_1$$ to $$x_2$$. Then I would use:
$$\displaystyle x_p=x_1+p(x_2-x_1)$$