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Finding the Third Proportional to 85,452 and 136,080

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Solution

The third proportional to 85,452 and 136,080 is: 216,703.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,452 : 136,080 = 136,080 : x
  2. Step 2: Convert to fraction form
    85,452/136,080 = 136,080/x
  3. Step 3: Cross multiply
    85,452x = 136,080 × 136,080
  4. Step 4: Simplify right side
    85,452x = 18,517,766,400
  5. Step 5: Solve for x
    x = 18,517,766,400/85,452
  6. Step 6: Final answer
    x = 216,703.72

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.