Home / 231,937.10-320,067.78-136,449.94

Finding the Fourth Proportional to 231,937.10, 320,067.78 and 136,449.94

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Solution

The fourth proportional to 231,937.10, 320,067.78 and 136,449.94 is: 188,297.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,937.10 : 320,067.78 = 136,449.94 : x
  2. Step 2: Convert to fraction form
    231,937.10/320,067.78 = 136,449.94/x
  3. Step 3: Cross multiply
    231,937.10x = 320,067.78 × 136,449.94
  4. Step 4: Simplify right side
    231,937.10x = 43,673,229,376.93
  5. Step 5: Solve for x
    x = 43,673,229,376.93/231,937.10
  6. Step 6: Final answer
    x = 188,297.73

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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.