Home / 195,799.51-270,198.07-115,231.78

Finding the Fourth Proportional to 195,799.51, 270,198.07 and 115,231.78

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Solution

The fourth proportional to 195,799.51, 270,198.07 and 115,231.78 is: 159,016.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,799.51 : 270,198.07 = 115,231.78 : x
  2. Step 2: Convert to fraction form
    195,799.51/270,198.07 = 115,231.78/x
  3. Step 3: Cross multiply
    195,799.51x = 270,198.07 × 115,231.78
  4. Step 4: Simplify right side
    195,799.51x = 31,135,404,558.66
  5. Step 5: Solve for x
    x = 31,135,404,558.66/195,799.51
  6. Step 6: Final answer
    x = 159,016.76

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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.