Home / 185,621.40-278,432.10-67,296.60

Finding the Fourth Proportional to 185,621.40, 278,432.10 and 67,296.60

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Solution

The fourth proportional to 185,621.40, 278,432.10 and 67,296.60 is: 100,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,621.40 : 278,432.10 = 67,296.60 : x
  2. Step 2: Convert to fraction form
    185,621.40/278,432.10 = 67,296.60/x
  3. Step 3: Cross multiply
    185,621.40x = 278,432.10 × 67,296.60
  4. Step 4: Simplify right side
    185,621.40x = 18,737,533,660.86
  5. Step 5: Solve for x
    x = 18,737,533,660.86/185,621.40
  6. Step 6: Final answer
    x = 100,944.90

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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.