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Finding the Third Proportional to 81,711 and 122,525

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Solution

The third proportional to 81,711 and 122,525 is: 183,725.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,711 : 122,525 = 122,525 : x
  2. Step 2: Convert to fraction form
    81,711/122,525 = 122,525/x
  3. Step 3: Cross multiply
    81,711x = 122,525 × 122,525
  4. Step 4: Simplify right side
    81,711x = 15,012,375,625
  5. Step 5: Solve for x
    x = 15,012,375,625/81,711
  6. Step 6: Final answer
    x = 183,725.27

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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.