Home / 199,078.07-298,739.81-80,750.43

Finding the Fourth Proportional to 199,078.07, 298,739.81 and 80,750.43

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Solution

The fourth proportional to 199,078.07, 298,739.81 and 80,750.43 is: 121,175.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,078.07 : 298,739.81 = 80,750.43 : x
  2. Step 2: Convert to fraction form
    199,078.07/298,739.81 = 80,750.43/x
  3. Step 3: Cross multiply
    199,078.07x = 298,739.81 × 80,750.43
  4. Step 4: Simplify right side
    199,078.07x = 24,123,368,317.49
  5. Step 5: Solve for x
    x = 24,123,368,317.49/199,078.07
  6. Step 6: Final answer
    x = 121,175.42

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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.