Home / 253,976.16-381,139.20-113,891.52

Finding the Fourth Proportional to 253,976.16, 381,139.20 and 113,891.52

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Solution

The fourth proportional to 253,976.16, 381,139.20 and 113,891.52 is: 170,915.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,976.16 : 381,139.20 = 113,891.52 : x
  2. Step 2: Convert to fraction form
    253,976.16/381,139.20 = 113,891.52/x
  3. Step 3: Cross multiply
    253,976.16x = 381,139.20 × 113,891.52
  4. Step 4: Simplify right side
    253,976.16x = 43,408,522,819.58
  5. Step 5: Solve for x
    x = 43,408,522,819.58/253,976.16
  6. Step 6: Final answer
    x = 170,915.74

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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.