Home / 187,872.24-259,281.66-107,311.80

Finding the Fourth Proportional to 187,872.24, 259,281.66 and 107,311.80

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Solution

The fourth proportional to 187,872.24, 259,281.66 and 107,311.80 is: 148,100.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,872.24 : 259,281.66 = 107,311.80 : x
  2. Step 2: Convert to fraction form
    187,872.24/259,281.66 = 107,311.80/x
  3. Step 3: Cross multiply
    187,872.24x = 259,281.66 × 107,311.80
  4. Step 4: Simplify right side
    187,872.24x = 27,823,981,641.59
  5. Step 5: Solve for x
    x = 27,823,981,641.59/187,872.24
  6. Step 6: Final answer
    x = 148,100.55

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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.