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Finding the Fourth Proportional to 141.26, 195.12 and 94.72

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Solution

The fourth proportional to 141.26, 195.12 and 94.72 is: 130.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.26 : 195.12 = 94.72 : x
  2. Step 2: Convert to fraction form
    141.26/195.12 = 94.72/x
  3. Step 3: Cross multiply
    141.26x = 195.12 × 94.72
  4. Step 4: Simplify right side
    141.26x = 18,481.77
  5. Step 5: Solve for x
    x = 18,481.77/141.26
  6. Step 6: Final answer
    x = 130.84

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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.