Home / 231,744.20-319,811.94-131,142.20

Finding the Fourth Proportional to 231,744.20, 319,811.94 and 131,142.20

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Solution

The fourth proportional to 231,744.20, 319,811.94 and 131,142.20 is: 180,979.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,744.20 : 319,811.94 = 131,142.20 : x
  2. Step 2: Convert to fraction form
    231,744.20/319,811.94 = 131,142.20/x
  3. Step 3: Cross multiply
    231,744.20x = 319,811.94 × 131,142.20
  4. Step 4: Simplify right side
    231,744.20x = 41,940,839,798.81
  5. Step 5: Solve for x
    x = 41,940,839,798.81/231,744.20
  6. Step 6: Final answer
    x = 180,979.03

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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.