Home / 187,870.99-259,279.91-107,310.55

Finding the Fourth Proportional to 187,870.99, 259,279.91 and 107,310.55

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Solution

The fourth proportional to 187,870.99, 259,279.91 and 107,310.55 is: 148,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,870.99 : 259,279.91 = 107,310.55 : x
  2. Step 2: Convert to fraction form
    187,870.99/259,279.91 = 107,310.55/x
  3. Step 3: Cross multiply
    187,870.99x = 259,279.91 × 107,310.55
  4. Step 4: Simplify right side
    187,870.99x = 27,823,469,746.05
  5. Step 5: Solve for x
    x = 27,823,469,746.05/187,870.99
  6. Step 6: Final answer
    x = 148,098.81

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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.