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Finding the Fourth Proportional to 133,072.80, 199,803.60 and 54,340.80

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Solution

The fourth proportional to 133,072.80, 199,803.60 and 54,340.80 is: 81,590.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,072.80 : 199,803.60 = 54,340.80 : x
  2. Step 2: Convert to fraction form
    133,072.80/199,803.60 = 54,340.80/x
  3. Step 3: Cross multiply
    133,072.80x = 199,803.60 × 54,340.80
  4. Step 4: Simplify right side
    133,072.80x = 10,857,487,466.88
  5. Step 5: Solve for x
    x = 10,857,487,466.88/133,072.80
  6. Step 6: Final answer
    x = 81,590.58

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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.