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Finding the Third Proportional to 83.25 and 136.13

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Solution

The third proportional to 83.25 and 136.13 is: 222.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83.25 : 136.13 = 136.13 : x
  2. Step 2: Convert to fraction form
    83.25/136.13 = 136.13/x
  3. Step 3: Cross multiply
    83.25x = 136.13 × 136.13
  4. Step 4: Simplify right side
    83.25x = 18,530.02
  5. Step 5: Solve for x
    x = 18,530.02/83.25
  6. Step 6: Final answer
    x = 222.58

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.