Home / 276,942.20-415,413.30-89,972.60

Finding the Fourth Proportional to 276,942.20, 415,413.30 and 89,972.60

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Solution

The fourth proportional to 276,942.20, 415,413.30 and 89,972.60 is: 134,958.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,942.20 : 415,413.30 = 89,972.60 : x
  2. Step 2: Convert to fraction form
    276,942.20/415,413.30 = 89,972.60/x
  3. Step 3: Cross multiply
    276,942.20x = 415,413.30 × 89,972.60
  4. Step 4: Simplify right side
    276,942.20x = 37,375,814,675.58
  5. Step 5: Solve for x
    x = 37,375,814,675.58/276,942.20
  6. Step 6: Final answer
    x = 134,958.90

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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.