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Finding the Fourth Proportional to 135.11, 185.35 and 133.85

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Solution

The fourth proportional to 135.11, 185.35 and 133.85 is: 183.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.11 : 185.35 = 133.85 : x
  2. Step 2: Convert to fraction form
    135.11/185.35 = 133.85/x
  3. Step 3: Cross multiply
    135.11x = 185.35 × 133.85
  4. Step 4: Simplify right side
    135.11x = 24,809.10
  5. Step 5: Solve for x
    x = 24,809.10/135.11
  6. Step 6: Final answer
    x = 183.62

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.