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Finding the Third Proportional to 81,624 and 122,676

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Solution

The third proportional to 81,624 and 122,676 is: 184,374.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,624 : 122,676 = 122,676 : x
  2. Step 2: Convert to fraction form
    81,624/122,676 = 122,676/x
  3. Step 3: Cross multiply
    81,624x = 122,676 × 122,676
  4. Step 4: Simplify right side
    81,624x = 15,049,400,976
  5. Step 5: Solve for x
    x = 15,049,400,976/81,624
  6. Step 6: Final answer
    x = 184,374.71

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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.