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Finding the Fourth Proportional to 167.48, 251.01 and 69.95

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Solution

The fourth proportional to 167.48, 251.01 and 69.95 is: 104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.48 : 251.01 = 69.95 : x
  2. Step 2: Convert to fraction form
    167.48/251.01 = 69.95/x
  3. Step 3: Cross multiply
    167.48x = 251.01 × 69.95
  4. Step 4: Simplify right side
    167.48x = 17,556.89
  5. Step 5: Solve for x
    x = 17,556.89/167.48
  6. Step 6: Final answer
    x = 104.83

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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.