Home / 198,379.90-297,511.44-108,319.24

Finding the Fourth Proportional to 198,379.90, 297,511.44 and 108,319.24

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Solution

The fourth proportional to 198,379.90, 297,511.44 and 108,319.24 is: 162,446.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,379.90 : 297,511.44 = 108,319.24 : x
  2. Step 2: Convert to fraction form
    198,379.90/297,511.44 = 108,319.24/x
  3. Step 3: Cross multiply
    198,379.90x = 297,511.44 × 108,319.24
  4. Step 4: Simplify right side
    198,379.90x = 32,226,213,072.11
  5. Step 5: Solve for x
    x = 32,226,213,072.11/198,379.90
  6. Step 6: Final answer
    x = 162,446.97

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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.