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Finding the Third Proportional to 87,743 and 136,738

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Solution

The third proportional to 87,743 and 136,738 is: 213,091.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,743 : 136,738 = 136,738 : x
  2. Step 2: Convert to fraction form
    87,743/136,738 = 136,738/x
  3. Step 3: Cross multiply
    87,743x = 136,738 × 136,738
  4. Step 4: Simplify right side
    87,743x = 18,697,280,644
  5. Step 5: Solve for x
    x = 18,697,280,644/87,743
  6. Step 6: Final answer
    x = 213,091.42

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.