Home / 109,626.40-164,439.60-39,512.80

Finding the Fourth Proportional to 109,626.40, 164,439.60 and 39,512.80

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Solution

The fourth proportional to 109,626.40, 164,439.60 and 39,512.80 is: 59,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,626.40 : 164,439.60 = 39,512.80 : x
  2. Step 2: Convert to fraction form
    109,626.40/164,439.60 = 39,512.80/x
  3. Step 3: Cross multiply
    109,626.40x = 164,439.60 × 39,512.80
  4. Step 4: Simplify right side
    109,626.40x = 6,497,469,026.88
  5. Step 5: Solve for x
    x = 6,497,469,026.88/109,626.40
  6. Step 6: Final answer
    x = 59,269.20

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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.