Home / 198,015.17-273,305.54-166,128.71

Finding the Fourth Proportional to 198,015.17, 273,305.54 and 166,128.71

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Solution

The fourth proportional to 198,015.17, 273,305.54 and 166,128.71 is: 229,295.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,015.17 : 273,305.54 = 166,128.71 : x
  2. Step 2: Convert to fraction form
    198,015.17/273,305.54 = 166,128.71/x
  3. Step 3: Cross multiply
    198,015.17x = 273,305.54 × 166,128.71
  4. Step 4: Simplify right side
    198,015.17x = 45,403,895,844.85
  5. Step 5: Solve for x
    x = 45,403,895,844.85/198,015.17
  6. Step 6: Final answer
    x = 229,295.04

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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.