Home / 199,008.32-298,511.79-80,679.38

Finding the Fourth Proportional to 199,008.32, 298,511.79 and 80,679.38

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Solution

The fourth proportional to 199,008.32, 298,511.79 and 80,679.38 is: 121,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,008.32 : 298,511.79 = 80,679.38 : x
  2. Step 2: Convert to fraction form
    199,008.32/298,511.79 = 80,679.38/x
  3. Step 3: Cross multiply
    199,008.32x = 298,511.79 × 80,679.38
  4. Step 4: Simplify right side
    199,008.32x = 24,083,744,647.33
  5. Step 5: Solve for x
    x = 24,083,744,647.33/199,008.32
  6. Step 6: Final answer
    x = 121,018.79

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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.