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Finding the Fourth Proportional to 134.13, 200.11 and 113.61

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Solution

The fourth proportional to 134.13, 200.11 and 113.61 is: 169.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.13 : 200.11 = 113.61 : x
  2. Step 2: Convert to fraction form
    134.13/200.11 = 113.61/x
  3. Step 3: Cross multiply
    134.13x = 200.11 × 113.61
  4. Step 4: Simplify right side
    134.13x = 22,734.21
  5. Step 5: Solve for x
    x = 22,734.21/134.13
  6. Step 6: Final answer
    x = 169.49

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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.