Home / 156,966.40-235,449.60-57,129.85

Finding the Fourth Proportional to 156,966.40, 235,449.60 and 57,129.85

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Solution

The fourth proportional to 156,966.40, 235,449.60 and 57,129.85 is: 85,694.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,966.40 : 235,449.60 = 57,129.85 : x
  2. Step 2: Convert to fraction form
    156,966.40/235,449.60 = 57,129.85/x
  3. Step 3: Cross multiply
    156,966.40x = 235,449.60 × 57,129.85
  4. Step 4: Simplify right side
    156,966.40x = 13,451,200,330.56
  5. Step 5: Solve for x
    x = 13,451,200,330.56/156,966.40
  6. Step 6: Final answer
    x = 85,694.78

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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.