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Finding the Fourth Proportional to 167.94, 251.78 and 95.70

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Solution

The fourth proportional to 167.94, 251.78 and 95.70 is: 143.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.94 : 251.78 = 95.70 : x
  2. Step 2: Convert to fraction form
    167.94/251.78 = 95.70/x
  3. Step 3: Cross multiply
    167.94x = 251.78 × 95.70
  4. Step 4: Simplify right side
    167.94x = 24,095.35
  5. Step 5: Solve for x
    x = 24,095.35/167.94
  6. Step 6: Final answer
    x = 143.48

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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.