142.8 is what percent of 2.1 - 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 2.1 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 2.1, so we can write it down as 100%=2.1.
4. We know, that x% equals 142.8 of the output value, so we can write it down as x%=142.8.
5. Now we have two simple equations:
1) 100%=2.1
2) x%=142.8
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%=2.1/142.8
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 142.8 is what percent of 2.1

100%/x%=2.1/142.8
(100/x)*x=(2.1/142.8)*x       - we multiply both sides of the equation by x
100=0.014705882352941*x       - we divide both sides of the equation by (0.014705882352941) to get x
100/0.014705882352941=x
6800=x
x=6800

now we have:
142.8 is 6800% of 2.1