Finding the Fourth Proportional to 117,133.97, 161,645.09 and 63,419.49
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Solution
The fourth proportional to 117,133.97, 161,645.09 and 63,419.49 is: 87,519.01
Step by Step Solution
- Step 1: Write the proportion equation
117,133.97 : 161,645.09 = 63,419.49 : x - Step 2: Convert to fraction form
117,133.97/161,645.09 = 63,419.49/x - Step 3: Cross multiply
117,133.97x = 161,645.09 × 63,419.49 - Step 4: Simplify right side
117,133.97x = 10,251,448,851.71 - Step 5: Solve for x
x = 10,251,448,851.71/117,133.97 - Step 6: Final answer
x = 87,519.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.