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Finding the Third Proportional to 39,661 and 86,234

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Solution

The third proportional to 39,661 and 86,234 is: 187,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,661 : 86,234 = 86,234 : x
  2. Step 2: Convert to fraction form
    39,661/86,234 = 86,234/x
  3. Step 3: Cross multiply
    39,661x = 86,234 × 86,234
  4. Step 4: Simplify right side
    39,661x = 7,436,302,756
  5. Step 5: Solve for x
    x = 7,436,302,756/39,661
  6. Step 6: Final answer
    x = 187,496.60

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.