Home / 198,305.35-273,704.57-121,864.64

Finding the Fourth Proportional to 198,305.35, 273,704.57 and 121,864.64

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Solution

The fourth proportional to 198,305.35, 273,704.57 and 121,864.64 is: 168,199.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,305.35 : 273,704.57 = 121,864.64 : x
  2. Step 2: Convert to fraction form
    198,305.35/273,704.57 = 121,864.64/x
  3. Step 3: Cross multiply
    198,305.35x = 273,704.57 × 121,864.64
  4. Step 4: Simplify right side
    198,305.35x = 33,354,907,368.55
  5. Step 5: Solve for x
    x = 33,354,907,368.55/198,305.35
  6. Step 6: Final answer
    x = 168,199.74

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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.