Home / 198,072.56-273,339.33-107,428.16

Finding the Fourth Proportional to 198,072.56, 273,339.33 and 107,428.16

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Solution

The fourth proportional to 198,072.56, 273,339.33 and 107,428.16 is: 148,250.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,072.56 : 273,339.33 = 107,428.16 : x
  2. Step 2: Convert to fraction form
    198,072.56/273,339.33 = 107,428.16/x
  3. Step 3: Cross multiply
    198,072.56x = 273,339.33 × 107,428.16
  4. Step 4: Simplify right side
    198,072.56x = 29,364,339,910.84
  5. Step 5: Solve for x
    x = 29,364,339,910.84/198,072.56
  6. Step 6: Final answer
    x = 148,250.42

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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.