Home / 198,431.92-273,879.36-122,016.76

Finding the Fourth Proportional to 198,431.92, 273,879.36 and 122,016.76

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Solution

The fourth proportional to 198,431.92, 273,879.36 and 122,016.76 is: 168,409.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,431.92 : 273,879.36 = 122,016.76 : x
  2. Step 2: Convert to fraction form
    198,431.92/273,879.36 = 122,016.76/x
  3. Step 3: Cross multiply
    198,431.92x = 273,879.36 × 122,016.76
  4. Step 4: Simplify right side
    198,431.92x = 33,417,872,138.07
  5. Step 5: Solve for x
    x = 33,417,872,138.07/198,431.92
  6. Step 6: Final answer
    x = 168,409.76

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1.5x scale

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.