Home / 279,847.46-419,647.66-80,122.52

Finding the Fourth Proportional to 279,847.46, 419,647.66 and 80,122.52

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Solution

The fourth proportional to 279,847.46, 419,647.66 and 80,122.52 is: 120,148.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,847.46 : 419,647.66 = 80,122.52 : x
  2. Step 2: Convert to fraction form
    279,847.46/419,647.66 = 80,122.52/x
  3. Step 3: Cross multiply
    279,847.46x = 419,647.66 × 80,122.52
  4. Step 4: Simplify right side
    279,847.46x = 33,623,228,031.30
  5. Step 5: Solve for x
    x = 33,623,228,031.30/279,847.46
  6. Step 6: Final answer
    x = 120,148.41

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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.