Home / 181,435.29-272,198.94-128,231.94

Finding the Fourth Proportional to 181,435.29, 272,198.94 and 128,231.94

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Solution

The fourth proportional to 181,435.29, 272,198.94 and 128,231.94 is: 192,380.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,435.29 : 272,198.94 = 128,231.94 : x
  2. Step 2: Convert to fraction form
    181,435.29/272,198.94 = 128,231.94/x
  3. Step 3: Cross multiply
    181,435.29x = 272,198.94 × 128,231.94
  4. Step 4: Simplify right side
    181,435.29x = 34,904,598,142.14
  5. Step 5: Solve for x
    x = 34,904,598,142.14/181,435.29
  6. Step 6: Final answer
    x = 192,380.42

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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.