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Finding the Fourth Proportional to 181,843.37, 272,747.87 and 85,758.27

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Solution

The fourth proportional to 181,843.37, 272,747.87 and 85,758.27 is: 128,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,843.37 : 272,747.87 = 85,758.27 : x
  2. Step 2: Convert to fraction form
    181,843.37/272,747.87 = 85,758.27/x
  3. Step 3: Cross multiply
    181,843.37x = 272,747.87 × 85,758.27
  4. Step 4: Simplify right side
    181,843.37x = 23,390,385,048.59
  5. Step 5: Solve for x
    x = 23,390,385,048.59/181,843.37
  6. Step 6: Final answer
    x = 128,629.30

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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.