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Finding the Third Proportional to 81,960 and 118,452

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Solution

The third proportional to 81,960 and 118,452 is: 171,191.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,960 : 118,452 = 118,452 : x
  2. Step 2: Convert to fraction form
    81,960/118,452 = 118,452/x
  3. Step 3: Cross multiply
    81,960x = 118,452 × 118,452
  4. Step 4: Simplify right side
    81,960x = 14,030,876,304
  5. Step 5: Solve for x
    x = 14,030,876,304/81,960
  6. Step 6: Final answer
    x = 171,191.76

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.