Home / 131,884.62-197,826.45-72,689.10

Finding the Fourth Proportional to 131,884.62, 197,826.45 and 72,689.10

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Solution

The fourth proportional to 131,884.62, 197,826.45 and 72,689.10 is: 109,033.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,884.62 : 197,826.45 = 72,689.10 : x
  2. Step 2: Convert to fraction form
    131,884.62/197,826.45 = 72,689.10/x
  3. Step 3: Cross multiply
    131,884.62x = 197,826.45 × 72,689.10
  4. Step 4: Simplify right side
    131,884.62x = 14,379,826,606.70
  5. Step 5: Solve for x
    x = 14,379,826,606.70/131,884.62
  6. Step 6: Final answer
    x = 109,033.39

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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.