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Finding the Third Proportional to 87,890 and 136,204

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Solution

The third proportional to 87,890 and 136,204 is: 211,076.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,890 : 136,204 = 136,204 : x
  2. Step 2: Convert to fraction form
    87,890/136,204 = 136,204/x
  3. Step 3: Cross multiply
    87,890x = 136,204 × 136,204
  4. Step 4: Simplify right side
    87,890x = 18,551,529,616
  5. Step 5: Solve for x
    x = 18,551,529,616/87,890
  6. Step 6: Final answer
    x = 211,076.68

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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.