Home / 198,665.28-274,161.51-108,021.86

Finding the Fourth Proportional to 198,665.28, 274,161.51 and 108,021.86

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Solution

The fourth proportional to 198,665.28, 274,161.51 and 108,021.86 is: 149,072.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,665.28 : 274,161.51 = 108,021.86 : x
  2. Step 2: Convert to fraction form
    198,665.28/274,161.51 = 108,021.86/x
  3. Step 3: Cross multiply
    198,665.28x = 274,161.51 × 108,021.86
  4. Step 4: Simplify right side
    198,665.28x = 29,615,434,339.69
  5. Step 5: Solve for x
    x = 29,615,434,339.69/198,665.28
  6. Step 6: Final answer
    x = 149,072.02

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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.