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Finding the Third Proportional to 81,555 and 114,849

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Solution

The third proportional to 81,555 and 114,849 is: 161,734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,555 : 114,849 = 114,849 : x
  2. Step 2: Convert to fraction form
    81,555/114,849 = 114,849/x
  3. Step 3: Cross multiply
    81,555x = 114,849 × 114,849
  4. Step 4: Simplify right side
    81,555x = 13,190,292,801
  5. Step 5: Solve for x
    x = 13,190,292,801/81,555
  6. Step 6: Final answer
    x = 161,734.94

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.