Home / 83,940.16-125,910.30-80,295.76

Finding the Fourth Proportional to 83,940.16, 125,910.30 and 80,295.76

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Solution

The fourth proportional to 83,940.16, 125,910.30 and 80,295.76 is: 120,443.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,940.16 : 125,910.30 = 80,295.76 : x
  2. Step 2: Convert to fraction form
    83,940.16/125,910.30 = 80,295.76/x
  3. Step 3: Cross multiply
    83,940.16x = 125,910.30 × 80,295.76
  4. Step 4: Simplify right side
    83,940.16x = 10,110,063,230.33
  5. Step 5: Solve for x
    x = 10,110,063,230.33/83,940.16
  6. Step 6: Final answer
    x = 120,443.70

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1.5x scale

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.