Home / 181,585.38-272,176.29-137,067.78

Finding the Fourth Proportional to 181,585.38, 272,176.29 and 137,067.78

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Solution

The fourth proportional to 181,585.38, 272,176.29 and 137,067.78 is: 205,449.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,585.38 : 272,176.29 = 137,067.78 : x
  2. Step 2: Convert to fraction form
    181,585.38/272,176.29 = 137,067.78/x
  3. Step 3: Cross multiply
    181,585.38x = 272,176.29 × 137,067.78
  4. Step 4: Simplify right side
    181,585.38x = 37,306,599,838.94
  5. Step 5: Solve for x
    x = 37,306,599,838.94/181,585.38
  6. Step 6: Final answer
    x = 205,449.36

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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.