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Finding the Fourth Proportional to 181,940.80, 272,578.68 and 131,896.84

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Solution

The fourth proportional to 181,940.80, 272,578.68 and 131,896.84 is: 197,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,940.80 : 272,578.68 = 131,896.84 : x
  2. Step 2: Convert to fraction form
    181,940.80/272,578.68 = 131,896.84/x
  3. Step 3: Cross multiply
    181,940.80x = 272,578.68 × 131,896.84
  4. Step 4: Simplify right side
    181,940.80x = 35,952,266,543.37
  5. Step 5: Solve for x
    x = 35,952,266,543.37/181,940.80
  6. Step 6: Final answer
    x = 197,604.20

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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.