Home / 198,097.25-273,459.44-121,628.79

Finding the Fourth Proportional to 198,097.25, 273,459.44 and 121,628.79

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Solution

The fourth proportional to 198,097.25, 273,459.44 and 121,628.79 is: 167,900.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,097.25 : 273,459.44 = 121,628.79 : x
  2. Step 2: Convert to fraction form
    198,097.25/273,459.44 = 121,628.79/x
  3. Step 3: Cross multiply
    198,097.25x = 273,459.44 × 121,628.79
  4. Step 4: Simplify right side
    198,097.25x = 33,260,541,105.35
  5. Step 5: Solve for x
    x = 33,260,541,105.35/198,097.25
  6. Step 6: Final answer
    x = 167,900.07

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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.