Home / 109,084.20-163,530.30-73,909.80

Finding the Fourth Proportional to 109,084.20, 163,530.30 and 73,909.80

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Solution

The fourth proportional to 109,084.20, 163,530.30 and 73,909.80 is: 110,799.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,084.20 : 163,530.30 = 73,909.80 : x
  2. Step 2: Convert to fraction form
    109,084.20/163,530.30 = 73,909.80/x
  3. Step 3: Cross multiply
    109,084.20x = 163,530.30 × 73,909.80
  4. Step 4: Simplify right side
    109,084.20x = 12,086,491,766.94
  5. Step 5: Solve for x
    x = 12,086,491,766.94/109,084.20
  6. Step 6: Final answer
    x = 110,799.66

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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.