Home / 198,028-273,295.92-108,621.28

Finding the Fourth Proportional to 198,028, 273,295.92 and 108,621.28

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Solution

The fourth proportional to 198,028, 273,295.92 and 108,621.28 is: 149,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,028 : 273,295.92 = 108,621.28 : x
  2. Step 2: Convert to fraction form
    198,028/273,295.92 = 108,621.28/x
  3. Step 3: Cross multiply
    198,028x = 273,295.92 × 108,621.28
  4. Step 4: Simplify right side
    198,028x = 29,685,752,649.18
  5. Step 5: Solve for x
    x = 29,685,752,649.18/198,028
  6. Step 6: Final answer
    x = 149,906.84

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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.