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Finding the Fourth Proportional to 168.79, 232.93 and 94.11

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Solution

The fourth proportional to 168.79, 232.93 and 94.11 is: 129.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.79 : 232.93 = 94.11 : x
  2. Step 2: Convert to fraction form
    168.79/232.93 = 94.11/x
  3. Step 3: Cross multiply
    168.79x = 232.93 × 94.11
  4. Step 4: Simplify right side
    168.79x = 21,920.23
  5. Step 5: Solve for x
    x = 21,920.23/168.79
  6. Step 6: Final answer
    x = 129.87

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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.