Home / 104,177.88-156,102.66-80,543.10

Finding the Fourth Proportional to 104,177.88, 156,102.66 and 80,543.10

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Solution

The fourth proportional to 104,177.88, 156,102.66 and 80,543.10 is: 120,687.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,177.88 : 156,102.66 = 80,543.10 : x
  2. Step 2: Convert to fraction form
    104,177.88/156,102.66 = 80,543.10/x
  3. Step 3: Cross multiply
    104,177.88x = 156,102.66 × 80,543.10
  4. Step 4: Simplify right side
    104,177.88x = 12,572,992,154.65
  5. Step 5: Solve for x
    x = 12,572,992,154.65/104,177.88
  6. Step 6: Final answer
    x = 120,687.73

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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.