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Finding the Third Proportional to 136.27 and 153.14

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Solution

The third proportional to 136.27 and 153.14 is: 172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.27 : 153.14 = 153.14 : x
  2. Step 2: Convert to fraction form
    136.27/153.14 = 153.14/x
  3. Step 3: Cross multiply
    136.27x = 153.14 × 153.14
  4. Step 4: Simplify right side
    136.27x = 23,452.05
  5. Step 5: Solve for x
    x = 23,452.05/136.27
  6. Step 6: Final answer
    x = 172.11

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.