Home / 198,050.56-273,270.72-121,560.64

Finding the Fourth Proportional to 198,050.56, 273,270.72 and 121,560.64

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Solution

The fourth proportional to 198,050.56, 273,270.72 and 121,560.64 is: 167,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,050.56 : 273,270.72 = 121,560.64 : x
  2. Step 2: Convert to fraction form
    198,050.56/273,270.72 = 121,560.64/x
  3. Step 3: Cross multiply
    198,050.56x = 273,270.72 × 121,560.64
  4. Step 4: Simplify right side
    198,050.56x = 33,218,963,616.46
  5. Step 5: Solve for x
    x = 33,218,963,616.46/198,050.56
  6. Step 6: Final answer
    x = 167,729.71

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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.