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Finding the Fourth Proportional to 129.03, 193.68 and 94.83

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Solution

The fourth proportional to 129.03, 193.68 and 94.83 is: 142.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129.03 : 193.68 = 94.83 : x
  2. Step 2: Convert to fraction form
    129.03/193.68 = 94.83/x
  3. Step 3: Cross multiply
    129.03x = 193.68 × 94.83
  4. Step 4: Simplify right side
    129.03x = 18,366.67
  5. Step 5: Solve for x
    x = 18,366.67/129.03
  6. Step 6: Final answer
    x = 142.34

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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.