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Finding the Fourth Proportional to 167.48, 231.15 and 125.97

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Solution

The fourth proportional to 167.48, 231.15 and 125.97 is: 173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.48 : 231.15 = 125.97 : x
  2. Step 2: Convert to fraction form
    167.48/231.15 = 125.97/x
  3. Step 3: Cross multiply
    167.48x = 231.15 × 125.97
  4. Step 4: Simplify right side
    167.48x = 29,117.97
  5. Step 5: Solve for x
    x = 29,117.97/167.48
  6. Step 6: Final answer
    x = 173.86

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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.