Finding the Fourth Proportional to 117,044.91, 161,468.96 and 74,577.02
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Solution
The fourth proportional to 117,044.91, 161,468.96 and 74,577.02 is: 102,882.50
Step by Step Solution
- Step 1: Write the proportion equation
117,044.91 : 161,468.96 = 74,577.02 : x - Step 2: Convert to fraction form
117,044.91/161,468.96 = 74,577.02/x - Step 3: Cross multiply
117,044.91x = 161,468.96 × 74,577.02 - Step 4: Simplify right side
117,044.91x = 12,041,872,679.07 - Step 5: Solve for x
x = 12,041,872,679.07/117,044.91 - Step 6: Final answer
x = 102,882.50
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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.