Home / 136,081.08-187,795.74-82,375.80

Finding the Fourth Proportional to 136,081.08, 187,795.74 and 82,375.80

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Solution

The fourth proportional to 136,081.08, 187,795.74 and 82,375.80 is: 113,680.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,081.08 : 187,795.74 = 82,375.80 : x
  2. Step 2: Convert to fraction form
    136,081.08/187,795.74 = 82,375.80/x
  3. Step 3: Cross multiply
    136,081.08x = 187,795.74 × 82,375.80
  4. Step 4: Simplify right side
    136,081.08x = 15,469,824,319.09
  5. Step 5: Solve for x
    x = 15,469,824,319.09/136,081.08
  6. Step 6: Final answer
    x = 113,680.93

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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.