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Finding the Third Proportional to 81,219.38 and 125,517.94

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Solution

The third proportional to 81,219.38 and 125,517.94 is: 193,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,219.38 : 125,517.94 = 125,517.94 : x
  2. Step 2: Convert to fraction form
    81,219.38/125,517.94 = 125,517.94/x
  3. Step 3: Cross multiply
    81,219.38x = 125,517.94 × 125,517.94
  4. Step 4: Simplify right side
    81,219.38x = 15,754,752,634.25
  5. Step 5: Solve for x
    x = 15,754,752,634.25/81,219.38
  6. Step 6: Final answer
    x = 193,977.76

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.