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Finding the Fourth Proportional to 96.26, 144.46 and 65.86

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Solution

The fourth proportional to 96.26, 144.46 and 65.86 is: 98.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.26 : 144.46 = 65.86 : x
  2. Step 2: Convert to fraction form
    96.26/144.46 = 65.86/x
  3. Step 3: Cross multiply
    96.26x = 144.46 × 65.86
  4. Step 4: Simplify right side
    96.26x = 9,513.41
  5. Step 5: Solve for x
    x = 9,513.41/96.26
  6. Step 6: Final answer
    x = 98.83

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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.