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Finding the Fourth Proportional to 133,805.80, 200,538.60 and 54,830.80

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Solution

The fourth proportional to 133,805.80, 200,538.60 and 54,830.80 is: 82,176.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,805.80 : 200,538.60 = 54,830.80 : x
  2. Step 2: Convert to fraction form
    133,805.80/200,538.60 = 54,830.80/x
  3. Step 3: Cross multiply
    133,805.80x = 200,538.60 × 54,830.80
  4. Step 4: Simplify right side
    133,805.80x = 10,995,691,868.88
  5. Step 5: Solve for x
    x = 10,995,691,868.88/133,805.80
  6. Step 6: Final answer
    x = 82,176.50

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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.