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Finding the Fourth Proportional to 134.68, 200.87 and 129.88

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Solution

The fourth proportional to 134.68, 200.87 and 129.88 is: 193.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.68 : 200.87 = 129.88 : x
  2. Step 2: Convert to fraction form
    134.68/200.87 = 129.88/x
  3. Step 3: Cross multiply
    134.68x = 200.87 × 129.88
  4. Step 4: Simplify right side
    134.68x = 26,089.00
  5. Step 5: Solve for x
    x = 26,089.00/134.68
  6. Step 6: Final answer
    x = 193.71

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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.