Home / 198,540.32-297,566.49-91,779.86

Finding the Fourth Proportional to 198,540.32, 297,566.49 and 91,779.86

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Solution

The fourth proportional to 198,540.32, 297,566.49 and 91,779.86 is: 137,557.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,540.32 : 297,566.49 = 91,779.86 : x
  2. Step 2: Convert to fraction form
    198,540.32/297,566.49 = 91,779.86/x
  3. Step 3: Cross multiply
    198,540.32x = 297,566.49 × 91,779.86
  4. Step 4: Simplify right side
    198,540.32x = 27,310,610,269.68
  5. Step 5: Solve for x
    x = 27,310,610,269.68/198,540.32
  6. Step 6: Final answer
    x = 137,557.00

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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.