Home / 126,568.40-189,622.20-103,067.60

Finding the Fourth Proportional to 126,568.40, 189,622.20 and 103,067.60

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Solution

The fourth proportional to 126,568.40, 189,622.20 and 103,067.60 is: 154,413.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,568.40 : 189,622.20 = 103,067.60 : x
  2. Step 2: Convert to fraction form
    126,568.40/189,622.20 = 103,067.60/x
  3. Step 3: Cross multiply
    126,568.40x = 189,622.20 × 103,067.60
  4. Step 4: Simplify right side
    126,568.40x = 19,543,905,060.72
  5. Step 5: Solve for x
    x = 19,543,905,060.72/126,568.40
  6. Step 6: Final answer
    x = 154,413.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.