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Finding the Third Proportional to 87,479 and 131,195

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Solution

The third proportional to 87,479 and 131,195 is: 196,757.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,479 : 131,195 = 131,195 : x
  2. Step 2: Convert to fraction form
    87,479/131,195 = 131,195/x
  3. Step 3: Cross multiply
    87,479x = 131,195 × 131,195
  4. Step 4: Simplify right side
    87,479x = 17,212,128,025
  5. Step 5: Solve for x
    x = 17,212,128,025/87,479
  6. Step 6: Final answer
    x = 196,757.26

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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.