Home / 198,428.94-273,836.52-107,788.50

Finding the Fourth Proportional to 198,428.94, 273,836.52 and 107,788.50

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Solution

The fourth proportional to 198,428.94, 273,836.52 and 107,788.50 is: 148,750.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,428.94 : 273,836.52 = 107,788.50 : x
  2. Step 2: Convert to fraction form
    198,428.94/273,836.52 = 107,788.50/x
  3. Step 3: Cross multiply
    198,428.94x = 273,836.52 × 107,788.50
  4. Step 4: Simplify right side
    198,428.94x = 29,516,427,736.02
  5. Step 5: Solve for x
    x = 29,516,427,736.02/198,428.94
  6. Step 6: Final answer
    x = 148,750.62

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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.