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Finding the Fourth Proportional to 118.55, 163.76 and 95.33

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Solution

The fourth proportional to 118.55, 163.76 and 95.33 is: 131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.55 : 163.76 = 95.33 : x
  2. Step 2: Convert to fraction form
    118.55/163.76 = 95.33/x
  3. Step 3: Cross multiply
    118.55x = 163.76 × 95.33
  4. Step 4: Simplify right side
    118.55x = 15,611.17
  5. Step 5: Solve for x
    x = 15,611.17/118.55
  6. Step 6: Final answer
    x = 131.68

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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.