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Finding the Fourth Proportional to 118.02, 163.08 and 96.24

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Solution

The fourth proportional to 118.02, 163.08 and 96.24 is: 132.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.02 : 163.08 = 96.24 : x
  2. Step 2: Convert to fraction form
    118.02/163.08 = 96.24/x
  3. Step 3: Cross multiply
    118.02x = 163.08 × 96.24
  4. Step 4: Simplify right side
    118.02x = 15,694.82
  5. Step 5: Solve for x
    x = 15,694.82/118.02
  6. Step 6: Final answer
    x = 132.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.