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Finding the Fourth Proportional to 141.87, 195.64 and 95.30

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Solution

The fourth proportional to 141.87, 195.64 and 95.30 is: 131.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.87 : 195.64 = 95.30 : x
  2. Step 2: Convert to fraction form
    141.87/195.64 = 95.30/x
  3. Step 3: Cross multiply
    141.87x = 195.64 × 95.30
  4. Step 4: Simplify right side
    141.87x = 18,644.49
  5. Step 5: Solve for x
    x = 18,644.49/141.87
  6. Step 6: Final answer
    x = 131.42

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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.