Home / 109,225.20-163,578.60-67,234.80

Finding the Fourth Proportional to 109,225.20, 163,578.60 and 67,234.80

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Solution

The fourth proportional to 109,225.20, 163,578.60 and 67,234.80 is: 100,692.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,225.20 : 163,578.60 = 67,234.80 : x
  2. Step 2: Convert to fraction form
    109,225.20/163,578.60 = 67,234.80/x
  3. Step 3: Cross multiply
    109,225.20x = 163,578.60 × 67,234.80
  4. Step 4: Simplify right side
    109,225.20x = 10,998,174,455.28
  5. Step 5: Solve for x
    x = 10,998,174,455.28/109,225.20
  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.