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Finding the Third Proportional to 81,551 and 126,038

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Solution

The third proportional to 81,551 and 126,038 is: 194,793.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,551 : 126,038 = 126,038 : x
  2. Step 2: Convert to fraction form
    81,551/126,038 = 126,038/x
  3. Step 3: Cross multiply
    81,551x = 126,038 × 126,038
  4. Step 4: Simplify right side
    81,551x = 15,885,577,444
  5. Step 5: Solve for x
    x = 15,885,577,444/81,551
  6. Step 6: Final answer
    x = 194,793.17

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.