Home / 185,380.32-278,092.11-67,107.36

Finding the Fourth Proportional to 185,380.32, 278,092.11 and 67,107.36

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Solution

The fourth proportional to 185,380.32, 278,092.11 and 67,107.36 is: 100,668.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,380.32 : 278,092.11 = 67,107.36 : x
  2. Step 2: Convert to fraction form
    185,380.32/278,092.11 = 67,107.36/x
  3. Step 3: Cross multiply
    185,380.32x = 278,092.11 × 67,107.36
  4. Step 4: Simplify right side
    185,380.32x = 18,662,027,338.93
  5. Step 5: Solve for x
    x = 18,662,027,338.93/185,380.32
  6. Step 6: Final answer
    x = 100,668.87

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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.