Home / 179,780.40-269,670.60-123,793.20

Finding the Fourth Proportional to 179,780.40, 269,670.60 and 123,793.20

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Solution

The fourth proportional to 179,780.40, 269,670.60 and 123,793.20 is: 185,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,780.40 : 269,670.60 = 123,793.20 : x
  2. Step 2: Convert to fraction form
    179,780.40/269,670.60 = 123,793.20/x
  3. Step 3: Cross multiply
    179,780.40x = 269,670.60 × 123,793.20
  4. Step 4: Simplify right side
    179,780.40x = 33,383,386,519.92
  5. Step 5: Solve for x
    x = 33,383,386,519.92/179,780.40
  6. Step 6: Final answer
    x = 185,689.80

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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.