Home / 138,556.09-207,832.88-43,786.29

Finding the Fourth Proportional to 138,556.09, 207,832.88 and 43,786.29

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Solution

The fourth proportional to 138,556.09, 207,832.88 and 43,786.29 is: 65,679.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,556.09 : 207,832.88 = 43,786.29 : x
  2. Step 2: Convert to fraction form
    138,556.09/207,832.88 = 43,786.29/x
  3. Step 3: Cross multiply
    138,556.09x = 207,832.88 × 43,786.29
  4. Step 4: Simplify right side
    138,556.09x = 9,100,230,755.22
  5. Step 5: Solve for x
    x = 9,100,230,755.22/138,556.09
  6. Step 6: Final answer
    x = 65,679.04

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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.