Home / 193,413.20-289,812.60-162,078.80

Finding the Fourth Proportional to 193,413.20, 289,812.60 and 162,078.80

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Solution

The fourth proportional to 193,413.20, 289,812.60 and 162,078.80 is: 242,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,413.20 : 289,812.60 = 162,078.80 : x
  2. Step 2: Convert to fraction form
    193,413.20/289,812.60 = 162,078.80/x
  3. Step 3: Cross multiply
    193,413.20x = 289,812.60 × 162,078.80
  4. Step 4: Simplify right side
    193,413.20x = 46,972,478,432.88
  5. Step 5: Solve for x
    x = 46,972,478,432.88/193,413.20
  6. Step 6: Final answer
    x = 242,860.77

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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.