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Finding the Fourth Proportional to 95.87, 143.52 and 83.87

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Solution

The fourth proportional to 95.87, 143.52 and 83.87 is: 125.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.87 : 143.52 = 83.87 : x
  2. Step 2: Convert to fraction form
    95.87/143.52 = 83.87/x
  3. Step 3: Cross multiply
    95.87x = 143.52 × 83.87
  4. Step 4: Simplify right side
    95.87x = 12,037.02
  5. Step 5: Solve for x
    x = 12,037.02/95.87
  6. Step 6: Final answer
    x = 125.56

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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.