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Finding the Fourth Proportional to 135.59, 187.16 and 96.71

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Solution

The fourth proportional to 135.59, 187.16 and 96.71 is: 133.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.59 : 187.16 = 96.71 : x
  2. Step 2: Convert to fraction form
    135.59/187.16 = 96.71/x
  3. Step 3: Cross multiply
    135.59x = 187.16 × 96.71
  4. Step 4: Simplify right side
    135.59x = 18,098.82
  5. Step 5: Solve for x
    x = 18,098.82/135.59
  6. Step 6: Final answer
    x = 133.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.