Finding the Fourth Proportional to 181,387.97, 272,174.12 and 81,528.05
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Solution
The fourth proportional to 181,387.97, 272,174.12 and 81,528.05 is: 122,333.50
Step by Step Solution
- Step 1: Write the proportion equation
181,387.97 : 272,174.12 = 81,528.05 : x - Step 2: Convert to fraction form
181,387.97/272,174.12 = 81,528.05/x - Step 3: Cross multiply
181,387.97x = 272,174.12 × 81,528.05 - Step 4: Simplify right side
181,387.97x = 22,189,824,856.43 - Step 5: Solve for x
x = 22,189,824,856.43/181,387.97 - Step 6: Final answer
x = 122,333.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.