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Finding the Fourth Proportional to 136.11, 202.96 and 134.89

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Solution

The fourth proportional to 136.11, 202.96 and 134.89 is: 201.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.11 : 202.96 = 134.89 : x
  2. Step 2: Convert to fraction form
    136.11/202.96 = 134.89/x
  3. Step 3: Cross multiply
    136.11x = 202.96 × 134.89
  4. Step 4: Simplify right side
    136.11x = 27,377.61
  5. Step 5: Solve for x
    x = 27,377.61/136.11
  6. Step 6: Final answer
    x = 201.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.