Home / 156,966.15-235,449.23-57,129.60

Finding the Fourth Proportional to 156,966.15, 235,449.23 and 57,129.60

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Solution

The fourth proportional to 156,966.15, 235,449.23 and 57,129.60 is: 85,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,966.15 : 235,449.23 = 57,129.60 : x
  2. Step 2: Convert to fraction form
    156,966.15/235,449.23 = 57,129.60/x
  3. Step 3: Cross multiply
    156,966.15x = 235,449.23 × 57,129.60
  4. Step 4: Simplify right side
    156,966.15x = 13,451,120,044.56
  5. Step 5: Solve for x
    x = 13,451,120,044.56/156,966.15
  6. Step 6: Final answer
    x = 85,694.40

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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.