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Finding the Fourth Proportional to 173.87, 260.48 and 96.87

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Solution

The fourth proportional to 173.87, 260.48 and 96.87 is: 145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.87 : 260.48 = 96.87 : x
  2. Step 2: Convert to fraction form
    173.87/260.48 = 96.87/x
  3. Step 3: Cross multiply
    173.87x = 260.48 × 96.87
  4. Step 4: Simplify right side
    173.87x = 25,232.70
  5. Step 5: Solve for x
    x = 25,232.70/173.87
  6. Step 6: Final answer
    x = 145.12

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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.