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Finding the Fourth Proportional to 96.16, 144.16 and 44.78

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Solution

The fourth proportional to 96.16, 144.16 and 44.78 is: 67.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.16 : 144.16 = 44.78 : x
  2. Step 2: Convert to fraction form
    96.16/144.16 = 44.78/x
  3. Step 3: Cross multiply
    96.16x = 144.16 × 44.78
  4. Step 4: Simplify right side
    96.16x = 6,455.31
  5. Step 5: Solve for x
    x = 6,455.31/96.16
  6. Step 6: Final answer
    x = 67.13

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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.