Home / 198,235.62-273,650.40-121,767.17

Finding the Fourth Proportional to 198,235.62, 273,650.40 and 121,767.17

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Solution

The fourth proportional to 198,235.62, 273,650.40 and 121,767.17 is: 168,091.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,235.62 : 273,650.40 = 121,767.17 : x
  2. Step 2: Convert to fraction form
    198,235.62/273,650.40 = 121,767.17/x
  3. Step 3: Cross multiply
    198,235.62x = 273,650.40 × 121,767.17
  4. Step 4: Simplify right side
    198,235.62x = 33,321,633,409.12
  5. Step 5: Solve for x
    x = 33,321,633,409.12/198,235.62
  6. Step 6: Final answer
    x = 168,091.05

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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.