Home / 199,072.91-298,607.53-80,716.11

Finding the Fourth Proportional to 199,072.91, 298,607.53 and 80,716.11

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Solution

The fourth proportional to 199,072.91, 298,607.53 and 80,716.11 is: 121,073.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,072.91 : 298,607.53 = 80,716.11 : x
  2. Step 2: Convert to fraction form
    199,072.91/298,607.53 = 80,716.11/x
  3. Step 3: Cross multiply
    199,072.91x = 298,607.53 × 80,716.11
  4. Step 4: Simplify right side
    199,072.91x = 24,102,438,747.75
  5. Step 5: Solve for x
    x = 24,102,438,747.75/199,072.91
  6. Step 6: Final answer
    x = 121,073.43

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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.