Home / 131,669.92-197,443.44-76,281.76

Finding the Fourth Proportional to 131,669.92, 197,443.44 and 76,281.76

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Solution

The fourth proportional to 131,669.92, 197,443.44 and 76,281.76 is: 114,387.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,669.92 : 197,443.44 = 76,281.76 : x
  2. Step 2: Convert to fraction form
    131,669.92/197,443.44 = 76,281.76/x
  3. Step 3: Cross multiply
    131,669.92x = 197,443.44 × 76,281.76
  4. Step 4: Simplify right side
    131,669.92x = 15,061,333,103.65
  5. Step 5: Solve for x
    x = 15,061,333,103.65/131,669.92
  6. Step 6: Final answer
    x = 114,387.05

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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.