Home / 199,007.82-298,511.05-80,678.88

Finding the Fourth Proportional to 199,007.82, 298,511.05 and 80,678.88

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Solution

The fourth proportional to 199,007.82, 298,511.05 and 80,678.88 is: 121,018.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,007.82 : 298,511.05 = 80,678.88 : x
  2. Step 2: Convert to fraction form
    199,007.82/298,511.05 = 80,678.88/x
  3. Step 3: Cross multiply
    199,007.82x = 298,511.05 × 80,678.88
  4. Step 4: Simplify right side
    199,007.82x = 24,083,537,181.62
  5. Step 5: Solve for x
    x = 24,083,537,181.62/199,007.82
  6. Step 6: Final answer
    x = 121,018.04

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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.