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Finding the Third Proportional to 85,514 and 187,120

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Solution

The third proportional to 85,514 and 187,120 is: 409,452.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,514 : 187,120 = 187,120 : x
  2. Step 2: Convert to fraction form
    85,514/187,120 = 187,120/x
  3. Step 3: Cross multiply
    85,514x = 187,120 × 187,120
  4. Step 4: Simplify right side
    85,514x = 35,013,894,400
  5. Step 5: Solve for x
    x = 35,013,894,400/85,514
  6. Step 6: Final answer
    x = 409,452.19

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.