19.4 is what percent of 80.5 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 80.5 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 80.5, so we can write it down as 100%=80.5.
4. We know, that x% equals 19.4 of the output value, so we can write it down as x%=19.4.
5. Now we have two simple equations:
1) 100%=80.5
2) x%=19.4
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=80.5/19.4
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 19.4 is what percent of 80.5

100%/x%=80.5/19.4
(100/x)*x=(80.5/19.4)*x       - we multiply both sides of the equation by x
100=4.1494845360825*x       - we divide both sides of the equation by (4.1494845360825) to get x
100/4.1494845360825=x
24.099378881988=x
x=24.099378881988

now we have:
19.4 is 24.099378881988% of 80.5