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Finding the Third Proportional to 80,938 and 126,687

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Solution

The third proportional to 80,938 and 126,687 is: 198,294.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,938 : 126,687 = 126,687 : x
  2. Step 2: Convert to fraction form
    80,938/126,687 = 126,687/x
  3. Step 3: Cross multiply
    80,938x = 126,687 × 126,687
  4. Step 4: Simplify right side
    80,938x = 16,049,595,969
  5. Step 5: Solve for x
    x = 16,049,595,969/80,938
  6. Step 6: Final answer
    x = 198,294.94

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.