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Finding the Fourth Proportional to 95,168.40, 131,288.40 and 66,890.40

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Solution

The fourth proportional to 95,168.40, 131,288.40 and 66,890.40 is: 92,277.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,168.40 : 131,288.40 = 66,890.40 : x
  2. Step 2: Convert to fraction form
    95,168.40/131,288.40 = 66,890.40/x
  3. Step 3: Cross multiply
    95,168.40x = 131,288.40 × 66,890.40
  4. Step 4: Simplify right side
    95,168.40x = 8,781,933,591.36
  5. Step 5: Solve for x
    x = 8,781,933,591.36/95,168.40
  6. Step 6: Final answer
    x = 92,277.83

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1.5x scale

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.