Home / 156,929.20-235,319.60-57,019.76

Finding the Fourth Proportional to 156,929.20, 235,319.60 and 57,019.76

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Solution

The fourth proportional to 156,929.20, 235,319.60 and 57,019.76 is: 85,502.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,929.20 : 235,319.60 = 57,019.76 : x
  2. Step 2: Convert to fraction form
    156,929.20/235,319.60 = 57,019.76/x
  3. Step 3: Cross multiply
    156,929.20x = 235,319.60 × 57,019.76
  4. Step 4: Simplify right side
    156,929.20x = 13,417,867,115.30
  5. Step 5: Solve for x
    x = 13,417,867,115.30/156,929.20
  6. Step 6: Final answer
    x = 85,502.68

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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.