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Finding the Third Proportional to 87,279.19 and 133,456.78

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Solution

The third proportional to 87,279.19 and 133,456.78 is: 204,065.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,279.19 : 133,456.78 = 133,456.78 : x
  2. Step 2: Convert to fraction form
    87,279.19/133,456.78 = 133,456.78/x
  3. Step 3: Cross multiply
    87,279.19x = 133,456.78 × 133,456.78
  4. Step 4: Simplify right side
    87,279.19x = 17,810,712,461.61
  5. Step 5: Solve for x
    x = 17,810,712,461.61/87,279.19
  6. Step 6: Final answer
    x = 204,065.97

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.