Home / 198,015.54-273,308.70-117,489.79

Finding the Fourth Proportional to 198,015.54, 273,308.70 and 117,489.79

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Solution

The fourth proportional to 198,015.54, 273,308.70 and 117,489.79 is: 162,163.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,015.54 : 273,308.70 = 117,489.79 : x
  2. Step 2: Convert to fraction form
    198,015.54/273,308.70 = 117,489.79/x
  3. Step 3: Cross multiply
    198,015.54x = 273,308.70 × 117,489.79
  4. Step 4: Simplify right side
    198,015.54x = 32,110,981,768.17
  5. Step 5: Solve for x
    x = 32,110,981,768.17/198,015.54
  6. Step 6: Final answer
    x = 162,163.95

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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.