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Finding the Fourth Proportional to 96.35, 132.84 and 68.69

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Solution

The fourth proportional to 96.35, 132.84 and 68.69 is: 94.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.35 : 132.84 = 68.69 : x
  2. Step 2: Convert to fraction form
    96.35/132.84 = 68.69/x
  3. Step 3: Cross multiply
    96.35x = 132.84 × 68.69
  4. Step 4: Simplify right side
    96.35x = 9,125.11
  5. Step 5: Solve for x
    x = 9,125.11/96.35
  6. Step 6: Final answer
    x = 94.71

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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.