Home / 109,626.20-164,439.30-74,196.80

Finding the Fourth Proportional to 109,626.20, 164,439.30 and 74,196.80

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Solution

The fourth proportional to 109,626.20, 164,439.30 and 74,196.80 is: 111,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,626.20 : 164,439.30 = 74,196.80 : x
  2. Step 2: Convert to fraction form
    109,626.20/164,439.30 = 74,196.80/x
  3. Step 3: Cross multiply
    109,626.20x = 164,439.30 × 74,196.80
  4. Step 4: Simplify right side
    109,626.20x = 12,200,869,854.24
  5. Step 5: Solve for x
    x = 12,200,869,854.24/109,626.20
  6. Step 6: Final answer
    x = 111,295.20

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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.