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Finding the Third Proportional to 87,910 and 131,285

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Solution

The third proportional to 87,910 and 131,285 is: 196,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,910 : 131,285 = 131,285 : x
  2. Step 2: Convert to fraction form
    87,910/131,285 = 131,285/x
  3. Step 3: Cross multiply
    87,910x = 131,285 × 131,285
  4. Step 4: Simplify right side
    87,910x = 17,235,751,225
  5. Step 5: Solve for x
    x = 17,235,751,225/87,910
  6. Step 6: Final answer
    x = 196,061.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.