Finding the Third Proportional to 71,920.13 and 151,423.88
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Solution
The third proportional to 71,920.13 and 151,423.88 is: 318,814.66
Step by Step Solution
- Step 1: Write the proportion equation
71,920.13 : 151,423.88 = 151,423.88 : x - Step 2: Convert to fraction form
71,920.13/151,423.88 = 151,423.88/x - Step 3: Cross multiply
71,920.13x = 151,423.88 × 151,423.88 - Step 4: Simplify right side
71,920.13x = 22,929,189,920.02 - Step 5: Solve for x
x = 22,929,189,920.02/71,920.13 - Step 6: Final answer
x = 318,814.66
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Why These Related Problems?
These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.