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Finding the Fourth Proportional to 133,375.20, 200,014.20 and 53,379.60

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Solution

The fourth proportional to 133,375.20, 200,014.20 and 53,379.60 is: 80,049.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,375.20 : 200,014.20 = 53,379.60 : x
  2. Step 2: Convert to fraction form
    133,375.20/200,014.20 = 53,379.60/x
  3. Step 3: Cross multiply
    133,375.20x = 200,014.20 × 53,379.60
  4. Step 4: Simplify right side
    133,375.20x = 10,676,677,990.32
  5. Step 5: Solve for x
    x = 10,676,677,990.32/133,375.20
  6. Step 6: Final answer
    x = 80,049.95

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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.