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Finding the Fourth Proportional to 93,722.20, 140,413.20 and 54,161.80

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Solution

The fourth proportional to 93,722.20, 140,413.20 and 54,161.80 is: 81,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,722.20 : 140,413.20 = 54,161.80 : x
  2. Step 2: Convert to fraction form
    93,722.20/140,413.20 = 54,161.80/x
  3. Step 3: Cross multiply
    93,722.20x = 140,413.20 × 54,161.80
  4. Step 4: Simplify right side
    93,722.20x = 7,605,031,655.76
  5. Step 5: Solve for x
    x = 7,605,031,655.76/93,722.20
  6. Step 6: Final answer
    x = 81,144.40

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