Home / 156,965.15-235,442.52-68,218.76

Finding the Fourth Proportional to 156,965.15, 235,442.52 and 68,218.76

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Solution

The fourth proportional to 156,965.15, 235,442.52 and 68,218.76 is: 102,325.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.15 : 235,442.52 = 68,218.76 : x
  2. Step 2: Convert to fraction form
    156,965.15/235,442.52 = 68,218.76/x
  3. Step 3: Cross multiply
    156,965.15x = 235,442.52 × 68,218.76
  4. Step 4: Simplify right side
    156,965.15x = 16,061,596,765.68
  5. Step 5: Solve for x
    x = 16,061,596,765.68/156,965.15
  6. Step 6: Final answer
    x = 102,325.88

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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.