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Finding the Fourth Proportional to 134.62, 202.11 and 129.14

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Solution

The fourth proportional to 134.62, 202.11 and 129.14 is: 193.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.62 : 202.11 = 129.14 : x
  2. Step 2: Convert to fraction form
    134.62/202.11 = 129.14/x
  3. Step 3: Cross multiply
    134.62x = 202.11 × 129.14
  4. Step 4: Simplify right side
    134.62x = 26,100.49
  5. Step 5: Solve for x
    x = 26,100.49/134.62
  6. Step 6: Final answer
    x = 193.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.