Home / 136,660.65-188,591.98-76,229.73

Finding the Fourth Proportional to 136,660.65, 188,591.98 and 76,229.73

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Solution

The fourth proportional to 136,660.65, 188,591.98 and 76,229.73 is: 105,197.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,660.65 : 188,591.98 = 76,229.73 : x
  2. Step 2: Convert to fraction form
    136,660.65/188,591.98 = 76,229.73/x
  3. Step 3: Cross multiply
    136,660.65x = 188,591.98 × 76,229.73
  4. Step 4: Simplify right side
    136,660.65x = 14,376,315,715.57
  5. Step 5: Solve for x
    x = 14,376,315,715.57/136,660.65
  6. Step 6: Final answer
    x = 105,197.19

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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.