Home / 165,939.20-248,908.80-55,131.20

Finding the Fourth Proportional to 165,939.20, 248,908.80 and 55,131.20

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Solution

The fourth proportional to 165,939.20, 248,908.80 and 55,131.20 is: 82,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,939.20 : 248,908.80 = 55,131.20 : x
  2. Step 2: Convert to fraction form
    165,939.20/248,908.80 = 55,131.20/x
  3. Step 3: Cross multiply
    165,939.20x = 248,908.80 × 55,131.20
  4. Step 4: Simplify right side
    165,939.20x = 13,722,640,834.56
  5. Step 5: Solve for x
    x = 13,722,640,834.56/165,939.20
  6. Step 6: Final answer
    x = 82,696.80

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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.