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Finding the Fourth Proportional to 96.03, 144.09 and 91.71

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Solution

The fourth proportional to 96.03, 144.09 and 91.71 is: 137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.03 : 144.09 = 91.71 : x
  2. Step 2: Convert to fraction form
    96.03/144.09 = 91.71/x
  3. Step 3: Cross multiply
    96.03x = 144.09 × 91.71
  4. Step 4: Simplify right side
    96.03x = 13,214.49
  5. Step 5: Solve for x
    x = 13,214.49/96.03
  6. Step 6: Final answer
    x = 137.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.