Home / 165,485.04-248,221.92-90,640.44

Finding the Fourth Proportional to 165,485.04, 248,221.92 and 90,640.44

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Solution

The fourth proportional to 165,485.04, 248,221.92 and 90,640.44 is: 135,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,485.04 : 248,221.92 = 90,640.44 : x
  2. Step 2: Convert to fraction form
    165,485.04/248,221.92 = 90,640.44/x
  3. Step 3: Cross multiply
    165,485.04x = 248,221.92 × 90,640.44
  4. Step 4: Simplify right side
    165,485.04x = 22,498,944,046.44
  5. Step 5: Solve for x
    x = 22,498,944,046.44/165,485.04
  6. Step 6: Final answer
    x = 135,957.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.