Home / 131,821.81-198,294-119,490.74

Finding the Fourth Proportional to 131,821.81, 198,294 and 119,490.74

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Solution

The fourth proportional to 131,821.81, 198,294 and 119,490.74 is: 179,744.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,821.81 : 198,294 = 119,490.74 : x
  2. Step 2: Convert to fraction form
    131,821.81/198,294 = 119,490.74/x
  3. Step 3: Cross multiply
    131,821.81x = 198,294 × 119,490.74
  4. Step 4: Simplify right side
    131,821.81x = 23,694,296,797.56
  5. Step 5: Solve for x
    x = 23,694,296,797.56/131,821.81
  6. Step 6: Final answer
    x = 179,744.89

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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.