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Finding the Fourth Proportional to 179.96, 270.04 and 83.76

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Solution

The fourth proportional to 179.96, 270.04 and 83.76 is: 125.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.96 : 270.04 = 83.76 : x
  2. Step 2: Convert to fraction form
    179.96/270.04 = 83.76/x
  3. Step 3: Cross multiply
    179.96x = 270.04 × 83.76
  4. Step 4: Simplify right side
    179.96x = 22,618.55
  5. Step 5: Solve for x
    x = 22,618.55/179.96
  6. Step 6: Final answer
    x = 125.69

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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.