Home / 205,149.15-307,861.19-72,029.83

Finding the Fourth Proportional to 205,149.15, 307,861.19 and 72,029.83

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Solution

The fourth proportional to 205,149.15, 307,861.19 and 72,029.83 is: 108,093.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,149.15 : 307,861.19 = 72,029.83 : x
  2. Step 2: Convert to fraction form
    205,149.15/307,861.19 = 72,029.83/x
  3. Step 3: Cross multiply
    205,149.15x = 307,861.19 × 72,029.83
  4. Step 4: Simplify right side
    205,149.15x = 22,175,189,179.30
  5. Step 5: Solve for x
    x = 22,175,189,179.30/205,149.15
  6. Step 6: Final answer
    x = 108,093.01

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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.