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Finding the Fourth Proportional to 141.85, 195.92 and 125.45

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Solution

The fourth proportional to 141.85, 195.92 and 125.45 is: 173.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.85 : 195.92 = 125.45 : x
  2. Step 2: Convert to fraction form
    141.85/195.92 = 125.45/x
  3. Step 3: Cross multiply
    141.85x = 195.92 × 125.45
  4. Step 4: Simplify right side
    141.85x = 24,577.76
  5. Step 5: Solve for x
    x = 24,577.76/141.85
  6. Step 6: Final answer
    x = 173.26

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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.