Home / 156,963.15-235,439.52-68,216.76

Finding the Fourth Proportional to 156,963.15, 235,439.52 and 68,216.76

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Solution

The fourth proportional to 156,963.15, 235,439.52 and 68,216.76 is: 102,322.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,963.15 : 235,439.52 = 68,216.76 : x
  2. Step 2: Convert to fraction form
    156,963.15/235,439.52 = 68,216.76/x
  3. Step 3: Cross multiply
    156,963.15x = 235,439.52 × 68,216.76
  4. Step 4: Simplify right side
    156,963.15x = 16,060,921,230.36
  5. Step 5: Solve for x
    x = 16,060,921,230.36/156,963.15
  6. Step 6: Final answer
    x = 102,322.88

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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.