Home / 239,072.82-329,920.49-131,642.58

Finding the Fourth Proportional to 239,072.82, 329,920.49 and 131,642.58

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Solution

The fourth proportional to 239,072.82, 329,920.49 and 131,642.58 is: 181,666.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,072.82 : 329,920.49 = 131,642.58 : x
  2. Step 2: Convert to fraction form
    239,072.82/329,920.49 = 131,642.58/x
  3. Step 3: Cross multiply
    239,072.82x = 329,920.49 × 131,642.58
  4. Step 4: Simplify right side
    239,072.82x = 43,431,583,840.25
  5. Step 5: Solve for x
    x = 43,431,583,840.25/239,072.82
  6. Step 6: Final answer
    x = 181,666.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.