Home / 279,505.44-419,169.90-89,923.57

Finding the Fourth Proportional to 279,505.44, 419,169.90 and 89,923.57

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Solution

The fourth proportional to 279,505.44, 419,169.90 and 89,923.57 is: 134,856.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,505.44 : 419,169.90 = 89,923.57 : x
  2. Step 2: Convert to fraction form
    279,505.44/419,169.90 = 89,923.57/x
  3. Step 3: Cross multiply
    279,505.44x = 419,169.90 × 89,923.57
  4. Step 4: Simplify right side
    279,505.44x = 37,693,253,844.54
  5. Step 5: Solve for x
    x = 37,693,253,844.54/279,505.44
  6. Step 6: Final answer
    x = 134,856.96

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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.