Home / 165,743.20-248,614.80-143,192.80

Finding the Fourth Proportional to 165,743.20, 248,614.80 and 143,192.80

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Solution

The fourth proportional to 165,743.20, 248,614.80 and 143,192.80 is: 214,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,743.20 : 248,614.80 = 143,192.80 : x
  2. Step 2: Convert to fraction form
    165,743.20/248,614.80 = 143,192.80/x
  3. Step 3: Cross multiply
    165,743.20x = 248,614.80 × 143,192.80
  4. Step 4: Simplify right side
    165,743.20x = 35,599,849,333.44
  5. Step 5: Solve for x
    x = 35,599,849,333.44/165,743.20
  6. Step 6: Final answer
    x = 214,789.20

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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.