10.2 is what percent of 10.3 - 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 10.3 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 10.3, so we can write it down as 100%=10.3.
4. We know, that x% equals 10.2 of the output value, so we can write it down as x%=10.2.
5. Now we have two simple equations:
1) 100%=10.3
2) x%=10.2
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%=10.3/10.2
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 10.2 is what percent of 10.3

100%/x%=10.3/10.2
(100/x)*x=(10.3/10.2)*x       - we multiply both sides of the equation by x
100=1.0098039215686*x       - we divide both sides of the equation by (1.0098039215686) to get x
100/1.0098039215686=x
99.029126213592=x
x=99.029126213592

now we have:
10.2 is 99.029126213592% of 10.3