Home / 279,906.03-419,846.29-90,375.14

Finding the Fourth Proportional to 279,906.03, 419,846.29 and 90,375.14

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Solution

The fourth proportional to 279,906.03, 419,846.29 and 90,375.14 is: 135,558.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,906.03 : 419,846.29 = 90,375.14 : x
  2. Step 2: Convert to fraction form
    279,906.03/419,846.29 = 90,375.14/x
  3. Step 3: Cross multiply
    279,906.03x = 419,846.29 × 90,375.14
  4. Step 4: Simplify right side
    279,906.03x = 37,943,668,060.91
  5. Step 5: Solve for x
    x = 37,943,668,060.91/279,906.03
  6. Step 6: Final answer
    x = 135,558.59

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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.