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Finding the Third Proportional to 87,629 and 131,294

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Solution

The third proportional to 87,629 and 131,294 is: 196,717.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,629 : 131,294 = 131,294 : x
  2. Step 2: Convert to fraction form
    87,629/131,294 = 131,294/x
  3. Step 3: Cross multiply
    87,629x = 131,294 × 131,294
  4. Step 4: Simplify right side
    87,629x = 17,238,114,436
  5. Step 5: Solve for x
    x = 17,238,114,436/87,629
  6. Step 6: Final answer
    x = 196,717.01

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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.