Home / 198,553.86-273,908.88-113,620.50

Finding the Fourth Proportional to 198,553.86, 273,908.88 and 113,620.50

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Solution

The fourth proportional to 198,553.86, 273,908.88 and 113,620.50 is: 156,741.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,553.86 : 273,908.88 = 113,620.50 : x
  2. Step 2: Convert to fraction form
    198,553.86/273,908.88 = 113,620.50/x
  3. Step 3: Cross multiply
    198,553.86x = 273,908.88 × 113,620.50
  4. Step 4: Simplify right side
    198,553.86x = 31,121,663,900.04
  5. Step 5: Solve for x
    x = 31,121,663,900.04/198,553.86
  6. Step 6: Final answer
    x = 156,741.67

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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.