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Finding the Fourth Proportional to 141.55, 195.16 and 116.56

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Solution

The fourth proportional to 141.55, 195.16 and 116.56 is: 160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.55 : 195.16 = 116.56 : x
  2. Step 2: Convert to fraction form
    141.55/195.16 = 116.56/x
  3. Step 3: Cross multiply
    141.55x = 195.16 × 116.56
  4. Step 4: Simplify right side
    141.55x = 22,747.85
  5. Step 5: Solve for x
    x = 22,747.85/141.55
  6. Step 6: Final answer
    x = 160.71

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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.