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Finding the Fourth Proportional to 167.38, 230.98 and 101.87

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Solution

The fourth proportional to 167.38, 230.98 and 101.87 is: 140.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.38 : 230.98 = 101.87 : x
  2. Step 2: Convert to fraction form
    167.38/230.98 = 101.87/x
  3. Step 3: Cross multiply
    167.38x = 230.98 × 101.87
  4. Step 4: Simplify right side
    167.38x = 23,528.78
  5. Step 5: Solve for x
    x = 23,528.78/167.38
  6. Step 6: Final answer
    x = 140.58

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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.