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Finding the Fourth Proportional to 195,654.90, 270,067.89 and 115,078.26

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Solution

The fourth proportional to 195,654.90, 270,067.89 and 115,078.26 is: 158,845.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,654.90 : 270,067.89 = 115,078.26 : x
  2. Step 2: Convert to fraction form
    195,654.90/270,067.89 = 115,078.26/x
  3. Step 3: Cross multiply
    195,654.90x = 270,067.89 × 115,078.26
  4. Step 4: Simplify right side
    195,654.90x = 31,078,942,863.07
  5. Step 5: Solve for x
    x = 31,078,942,863.07/195,654.90
  6. Step 6: Final answer
    x = 158,845.72

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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.