Home / 198,438.15-273,836.79-117,863.54

Finding the Fourth Proportional to 198,438.15, 273,836.79 and 117,863.54

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Solution

The fourth proportional to 198,438.15, 273,836.79 and 117,863.54 is: 162,647.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,438.15 : 273,836.79 = 117,863.54 : x
  2. Step 2: Convert to fraction form
    198,438.15/273,836.79 = 117,863.54/x
  3. Step 3: Cross multiply
    198,438.15x = 273,836.79 × 117,863.54
  4. Step 4: Simplify right side
    198,438.15x = 32,275,373,451.64
  5. Step 5: Solve for x
    x = 32,275,373,451.64/198,438.15
  6. Step 6: Final answer
    x = 162,647.02

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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.