Home / 198,428.88-273,834.81-107,786.61

Finding the Fourth Proportional to 198,428.88, 273,834.81 and 107,786.61

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Solution

The fourth proportional to 198,428.88, 273,834.81 and 107,786.61 is: 148,747.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,428.88 : 273,834.81 = 107,786.61 : x
  2. Step 2: Convert to fraction form
    198,428.88/273,834.81 = 107,786.61/x
  3. Step 3: Cross multiply
    198,428.88x = 273,834.81 × 107,786.61
  4. Step 4: Simplify right side
    198,428.88x = 29,515,725,869.89
  5. Step 5: Solve for x
    x = 29,515,725,869.89/198,428.88
  6. Step 6: Final answer
    x = 148,747.13

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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.