Home / 198,080.94-273,355.43-121,561.76

Finding the Fourth Proportional to 198,080.94, 273,355.43 and 121,561.76

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Solution

The fourth proportional to 198,080.94, 273,355.43 and 121,561.76 is: 167,757.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,080.94 : 273,355.43 = 121,561.76 : x
  2. Step 2: Convert to fraction form
    198,080.94/273,355.43 = 121,561.76/x
  3. Step 3: Cross multiply
    198,080.94x = 273,355.43 × 121,561.76
  4. Step 4: Simplify right side
    198,080.94x = 33,229,567,176.36
  5. Step 5: Solve for x
    x = 33,229,567,176.36/198,080.94
  6. Step 6: Final answer
    x = 167,757.52

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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.