Home / 185,396.18-278,115.88-67,123.22

Finding the Fourth Proportional to 185,396.18, 278,115.88 and 67,123.22

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Solution

The fourth proportional to 185,396.18, 278,115.88 and 67,123.22 is: 100,692.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,396.18 : 278,115.88 = 67,123.22 : x
  2. Step 2: Convert to fraction form
    185,396.18/278,115.88 = 67,123.22/x
  3. Step 3: Cross multiply
    185,396.18x = 278,115.88 × 67,123.22
  4. Step 4: Simplify right side
    185,396.18x = 18,668,033,398.73
  5. Step 5: Solve for x
    x = 18,668,033,398.73/185,396.18
  6. Step 6: Final answer
    x = 100,692.65

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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.