Home / 158,249.29-218,375.83-86,615.73

Finding the Fourth Proportional to 158,249.29, 218,375.83 and 86,615.73

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Solution

The fourth proportional to 158,249.29, 218,375.83 and 86,615.73 is: 119,525.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,249.29 : 218,375.83 = 86,615.73 : x
  2. Step 2: Convert to fraction form
    158,249.29/218,375.83 = 86,615.73/x
  3. Step 3: Cross multiply
    158,249.29x = 218,375.83 × 86,615.73
  4. Step 4: Simplify right side
    158,249.29x = 18,914,780,837.93
  5. Step 5: Solve for x
    x = 18,914,780,837.93/158,249.29
  6. Step 6: Final answer
    x = 119,525.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.