Home / 165,991.25-229,067.93-90,539.75

Finding the Fourth Proportional to 165,991.25, 229,067.93 and 90,539.75

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Solution

The fourth proportional to 165,991.25, 229,067.93 and 90,539.75 is: 124,944.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,991.25 : 229,067.93 = 90,539.75 : x
  2. Step 2: Convert to fraction form
    165,991.25/229,067.93 = 90,539.75/x
  3. Step 3: Cross multiply
    165,991.25x = 229,067.93 × 90,539.75
  4. Step 4: Simplify right side
    165,991.25x = 20,739,753,115.22
  5. Step 5: Solve for x
    x = 20,739,753,115.22/165,991.25
  6. Step 6: Final answer
    x = 124,944.86

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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.