Home / 198,150.68-273,597.65-121,775.16

Finding the Fourth Proportional to 198,150.68, 273,597.65 and 121,775.16

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Solution

The fourth proportional to 198,150.68, 273,597.65 and 121,775.16 is: 168,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,150.68 : 273,597.65 = 121,775.16 : x
  2. Step 2: Convert to fraction form
    198,150.68/273,597.65 = 121,775.16/x
  3. Step 3: Cross multiply
    198,150.68x = 273,597.65 × 121,775.16
  4. Step 4: Simplify right side
    198,150.68x = 33,317,396,995.50
  5. Step 5: Solve for x
    x = 33,317,396,995.50/198,150.68
  6. Step 6: Final answer
    x = 168,141.73

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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.