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Finding the Fourth Proportional to 104,158.80, 156,359.70 and 54,295.20

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Solution

The fourth proportional to 104,158.80, 156,359.70 and 54,295.20 is: 81,506.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,158.80 : 156,359.70 = 54,295.20 : x
  2. Step 2: Convert to fraction form
    104,158.80/156,359.70 = 54,295.20/x
  3. Step 3: Cross multiply
    104,158.80x = 156,359.70 × 54,295.20
  4. Step 4: Simplify right side
    104,158.80x = 8,489,581,183.44
  5. Step 5: Solve for x
    x = 8,489,581,183.44/104,158.80
  6. Step 6: Final answer
    x = 81,506.13

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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.