Home / 165,412.13-248,118.19-71,917.88

Finding the Fourth Proportional to 165,412.13, 248,118.19 and 71,917.88

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Solution

The fourth proportional to 165,412.13, 248,118.19 and 71,917.88 is: 107,876.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,412.13 : 248,118.19 = 71,917.88 : x
  2. Step 2: Convert to fraction form
    165,412.13/248,118.19 = 71,917.88/x
  3. Step 3: Cross multiply
    165,412.13x = 248,118.19 × 71,917.88
  4. Step 4: Simplify right side
    165,412.13x = 17,844,132,793.85
  5. Step 5: Solve for x
    x = 17,844,132,793.85/165,412.13
  6. Step 6: Final answer
    x = 107,876.81

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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.