Home / 156,963.31-235,439.67-68,216.82

Finding the Fourth Proportional to 156,963.31, 235,439.67 and 68,216.82

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Solution

The fourth proportional to 156,963.31, 235,439.67 and 68,216.82 is: 102,322.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,963.31 : 235,439.67 = 68,216.82 : x
  2. Step 2: Convert to fraction form
    156,963.31/235,439.67 = 68,216.82/x
  3. Step 3: Cross multiply
    156,963.31x = 235,439.67 × 68,216.82
  4. Step 4: Simplify right side
    156,963.31x = 16,060,944,962.16
  5. Step 5: Solve for x
    x = 16,060,944,962.16/156,963.31
  6. Step 6: Final answer
    x = 102,322.93

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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.