Home / 198,139.72-297,326.22-73,568.20

Finding the Fourth Proportional to 198,139.72, 297,326.22 and 73,568.20

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Solution

The fourth proportional to 198,139.72, 297,326.22 and 73,568.20 is: 110,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,139.72 : 297,326.22 = 73,568.20 : x
  2. Step 2: Convert to fraction form
    198,139.72/297,326.22 = 73,568.20/x
  3. Step 3: Cross multiply
    198,139.72x = 297,326.22 × 73,568.20
  4. Step 4: Simplify right side
    198,139.72x = 21,873,752,963.73
  5. Step 5: Solve for x
    x = 21,873,752,963.73/198,139.72
  6. Step 6: Final answer
    x = 110,395.60

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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.