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Finding the Third Proportional to 87,361 and 130,906

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Solution

The third proportional to 87,361 and 130,906 is: 196,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,361 : 130,906 = 130,906 : x
  2. Step 2: Convert to fraction form
    87,361/130,906 = 130,906/x
  3. Step 3: Cross multiply
    87,361x = 130,906 × 130,906
  4. Step 4: Simplify right side
    87,361x = 17,136,380,836
  5. Step 5: Solve for x
    x = 17,136,380,836/87,361
  6. Step 6: Final answer
    x = 196,155.96

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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.