Home / 199,125.36-298,739.22-66,042.78

Finding the Fourth Proportional to 199,125.36, 298,739.22 and 66,042.78

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Solution

The fourth proportional to 199,125.36, 298,739.22 and 66,042.78 is: 99,081.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,125.36 : 298,739.22 = 66,042.78 : x
  2. Step 2: Convert to fraction form
    199,125.36/298,739.22 = 66,042.78/x
  3. Step 3: Cross multiply
    199,125.36x = 298,739.22 × 66,042.78
  4. Step 4: Simplify right side
    199,125.36x = 19,729,568,583.83
  5. Step 5: Solve for x
    x = 19,729,568,583.83/199,125.36
  6. Step 6: Final answer
    x = 99,081.14

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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.