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Finding the Fourth Proportional to 96.12, 144.18 and 92.04

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Solution

The fourth proportional to 96.12, 144.18 and 92.04 is: 138.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.12 : 144.18 = 92.04 : x
  2. Step 2: Convert to fraction form
    96.12/144.18 = 92.04/x
  3. Step 3: Cross multiply
    96.12x = 144.18 × 92.04
  4. Step 4: Simplify right side
    96.12x = 13,270.33
  5. Step 5: Solve for x
    x = 13,270.33/96.12
  6. Step 6: Final answer
    x = 138.06

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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.