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Finding the Fourth Proportional to 122.14, 168.68 and 94.83

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Solution

The fourth proportional to 122.14, 168.68 and 94.83 is: 130.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.14 : 168.68 = 94.83 : x
  2. Step 2: Convert to fraction form
    122.14/168.68 = 94.83/x
  3. Step 3: Cross multiply
    122.14x = 168.68 × 94.83
  4. Step 4: Simplify right side
    122.14x = 15,995.92
  5. Step 5: Solve for x
    x = 15,995.92/122.14
  6. Step 6: Final answer
    x = 130.97

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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.