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Finding the Third Proportional to 87,963 and 136,245

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Solution

The third proportional to 87,963 and 136,245 is: 211,028.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,963 : 136,245 = 136,245 : x
  2. Step 2: Convert to fraction form
    87,963/136,245 = 136,245/x
  3. Step 3: Cross multiply
    87,963x = 136,245 × 136,245
  4. Step 4: Simplify right side
    87,963x = 18,562,700,025
  5. Step 5: Solve for x
    x = 18,562,700,025/87,963
  6. Step 6: Final answer
    x = 211,028.50

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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.