Home / 185,815.70-278,723.55-156,947.30

Finding the Fourth Proportional to 185,815.70, 278,723.55 and 156,947.30

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Solution

The fourth proportional to 185,815.70, 278,723.55 and 156,947.30 is: 235,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,815.70 : 278,723.55 = 156,947.30 : x
  2. Step 2: Convert to fraction form
    185,815.70/278,723.55 = 156,947.30/x
  3. Step 3: Cross multiply
    185,815.70x = 278,723.55 × 156,947.30
  4. Step 4: Simplify right side
    185,815.70x = 43,744,908,618.92
  5. Step 5: Solve for x
    x = 43,744,908,618.92/185,815.70
  6. Step 6: Final answer
    x = 235,420.95

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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.