Finding the Fourth Proportional to 132,855.47, 183,331.36 and 74,720.92
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Solution
The fourth proportional to 132,855.47, 183,331.36 and 74,720.92 is: 103,109.70
Step by Step Solution
- Step 1: Write the proportion equation
132,855.47 : 183,331.36 = 74,720.92 : x - Step 2: Convert to fraction form
132,855.47/183,331.36 = 74,720.92/x - Step 3: Cross multiply
132,855.47x = 183,331.36 × 74,720.92 - Step 4: Simplify right side
132,855.47x = 13,698,687,519.12 - Step 5: Solve for x
x = 13,698,687,519.12/132,855.47 - Step 6: Final answer
x = 103,109.70
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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.