Home / 239,151.45-330,043.97-131,721.43

Finding the Fourth Proportional to 239,151.45, 330,043.97 and 131,721.43

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Solution

The fourth proportional to 239,151.45, 330,043.97 and 131,721.43 is: 181,783.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,151.45 : 330,043.97 = 131,721.43 : x
  2. Step 2: Convert to fraction form
    239,151.45/330,043.97 = 131,721.43/x
  3. Step 3: Cross multiply
    239,151.45x = 330,043.97 × 131,721.43
  4. Step 4: Simplify right side
    239,151.45x = 43,473,863,691.28
  5. Step 5: Solve for x
    x = 43,473,863,691.28/239,151.45
  6. Step 6: Final answer
    x = 181,783.82

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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.