Home / 185,690.60-278,469.66-67,331.24

Finding the Fourth Proportional to 185,690.60, 278,469.66 and 67,331.24

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Solution

The fourth proportional to 185,690.60, 278,469.66 and 67,331.24 is: 100,972.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,690.60 : 278,469.66 = 67,331.24 : x
  2. Step 2: Convert to fraction form
    185,690.60/278,469.66 = 67,331.24/x
  3. Step 3: Cross multiply
    185,690.60x = 278,469.66 × 67,331.24
  4. Step 4: Simplify right side
    185,690.60x = 18,749,707,510.18
  5. Step 5: Solve for x
    x = 18,749,707,510.18/185,690.60
  6. Step 6: Final answer
    x = 100,972.84

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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.