Home / 199,009.44-298,513.49-80,680.50

Finding the Fourth Proportional to 199,009.44, 298,513.49 and 80,680.50

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Solution

The fourth proportional to 199,009.44, 298,513.49 and 80,680.50 is: 121,020.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,009.44 : 298,513.49 = 80,680.50 : x
  2. Step 2: Convert to fraction form
    199,009.44/298,513.49 = 80,680.50/x
  3. Step 3: Cross multiply
    199,009.44x = 298,513.49 × 80,680.50
  4. Step 4: Simplify right side
    199,009.44x = 24,084,217,226.54
  5. Step 5: Solve for x
    x = 24,084,217,226.54/199,009.44
  6. Step 6: Final answer
    x = 121,020.48

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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.