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Finding the Third Proportional to 38,182 and 81,872

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Solution

The third proportional to 38,182 and 81,872 is: 175,554.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,182 : 81,872 = 81,872 : x
  2. Step 2: Convert to fraction form
    38,182/81,872 = 81,872/x
  3. Step 3: Cross multiply
    38,182x = 81,872 × 81,872
  4. Step 4: Simplify right side
    38,182x = 6,703,024,384
  5. Step 5: Solve for x
    x = 6,703,024,384/38,182
  6. Step 6: Final answer
    x = 175,554.56

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.