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Finding the Third Proportional to 63,420 and 132,087

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Solution

The third proportional to 63,420 and 132,087 is: 275,102.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,420 : 132,087 = 132,087 : x
  2. Step 2: Convert to fraction form
    63,420/132,087 = 132,087/x
  3. Step 3: Cross multiply
    63,420x = 132,087 × 132,087
  4. Step 4: Simplify right side
    63,420x = 17,446,975,569
  5. Step 5: Solve for x
    x = 17,446,975,569/63,420
  6. Step 6: Final answer
    x = 275,102.11

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.