Home / 198,413.60-273,812.78-107,771.34

Finding the Fourth Proportional to 198,413.60, 273,812.78 and 107,771.34

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Solution

The fourth proportional to 198,413.60, 273,812.78 and 107,771.34 is: 148,725.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,413.60 : 273,812.78 = 107,771.34 : x
  2. Step 2: Convert to fraction form
    198,413.60/273,812.78 = 107,771.34/x
  3. Step 3: Cross multiply
    198,413.60x = 273,812.78 × 107,771.34
  4. Step 4: Simplify right side
    198,413.60x = 29,509,168,571.23
  5. Step 5: Solve for x
    x = 29,509,168,571.23/198,413.60
  6. Step 6: Final answer
    x = 148,725.53

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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.