Home / 156,787.92-216,367.74-85,167.36

Finding the Fourth Proportional to 156,787.92, 216,367.74 and 85,167.36

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Solution

The fourth proportional to 156,787.92, 216,367.74 and 85,167.36 is: 117,531.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,787.92 : 216,367.74 = 85,167.36 : x
  2. Step 2: Convert to fraction form
    156,787.92/216,367.74 = 85,167.36/x
  3. Step 3: Cross multiply
    156,787.92x = 216,367.74 × 85,167.36
  4. Step 4: Simplify right side
    156,787.92x = 18,427,469,204.97
  5. Step 5: Solve for x
    x = 18,427,469,204.97/156,787.92
  6. Step 6: Final answer
    x = 117,531.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.