Home / 100,942.20-151,413.30-48,324.60

Finding the Fourth Proportional to 100,942.20, 151,413.30 and 48,324.60

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Solution

The fourth proportional to 100,942.20, 151,413.30 and 48,324.60 is: 72,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,942.20 : 151,413.30 = 48,324.60 : x
  2. Step 2: Convert to fraction form
    100,942.20/151,413.30 = 48,324.60/x
  3. Step 3: Cross multiply
    100,942.20x = 151,413.30 × 48,324.60
  4. Step 4: Simplify right side
    100,942.20x = 7,316,987,157.18
  5. Step 5: Solve for x
    x = 7,316,987,157.18/100,942.20
  6. Step 6: Final answer
    x = 72,486.90

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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.