Home / 279,826.83-419,511.52-130,160.43

Finding the Fourth Proportional to 279,826.83, 419,511.52 and 130,160.43

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Solution

The fourth proportional to 279,826.83, 419,511.52 and 130,160.43 is: 195,134.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,826.83 : 419,511.52 = 130,160.43 : x
  2. Step 2: Convert to fraction form
    279,826.83/419,511.52 = 130,160.43/x
  3. Step 3: Cross multiply
    279,826.83x = 419,511.52 × 130,160.43
  4. Step 4: Simplify right side
    279,826.83x = 54,603,799,833.15
  5. Step 5: Solve for x
    x = 54,603,799,833.15/279,826.83
  6. Step 6: Final answer
    x = 195,134.25

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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.