Home / 257,454.70-386,182.13-79,961.73

Finding the Fourth Proportional to 257,454.70, 386,182.13 and 79,961.73

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Solution

The fourth proportional to 257,454.70, 386,182.13 and 79,961.73 is: 119,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,454.70 : 386,182.13 = 79,961.73 : x
  2. Step 2: Convert to fraction form
    257,454.70/386,182.13 = 79,961.73/x
  3. Step 3: Cross multiply
    257,454.70x = 386,182.13 × 79,961.73
  4. Step 4: Simplify right side
    257,454.70x = 30,879,791,983.95
  5. Step 5: Solve for x
    x = 30,879,791,983.95/257,454.70
  6. Step 6: Final answer
    x = 119,942.62

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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.