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Finding the Fourth Proportional to 96.06, 144.18 and 42

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Solution

The fourth proportional to 96.06, 144.18 and 42 is: 63.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.06 : 144.18 = 42 : x
  2. Step 2: Convert to fraction form
    96.06/144.18 = 42/x
  3. Step 3: Cross multiply
    96.06x = 144.18 × 42
  4. Step 4: Simplify right side
    96.06x = 6,055.56
  5. Step 5: Solve for x
    x = 6,055.56/96.06
  6. Step 6: Final answer
    x = 63.04

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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.