Home / 185,479.92-278,247.66-67,178.88

Finding the Fourth Proportional to 185,479.92, 278,247.66 and 67,178.88

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Solution

The fourth proportional to 185,479.92, 278,247.66 and 67,178.88 is: 100,778.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,479.92 : 278,247.66 = 67,178.88 : x
  2. Step 2: Convert to fraction form
    185,479.92/278,247.66 = 67,178.88/x
  3. Step 3: Cross multiply
    185,479.92x = 278,247.66 × 67,178.88
  4. Step 4: Simplify right side
    185,479.92x = 18,692,366,161.42
  5. Step 5: Solve for x
    x = 18,692,366,161.42/185,479.92
  6. Step 6: Final answer
    x = 100,778.38

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1.5x scale

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.