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Finding the Third Proportional to 131,681 and 187,747

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Solution

The third proportional to 131,681 and 187,747 is: 267,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,681 : 187,747 = 187,747 : x
  2. Step 2: Convert to fraction form
    131,681/187,747 = 187,747/x
  3. Step 3: Cross multiply
    131,681x = 187,747 × 187,747
  4. Step 4: Simplify right side
    131,681x = 35,248,936,009
  5. Step 5: Solve for x
    x = 35,248,936,009/131,681
  6. Step 6: Final answer
    x = 267,684.30

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.