Home / 209,091.31-313,589.68-96,709.86

Finding the Fourth Proportional to 209,091.31, 313,589.68 and 96,709.86

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Solution

The fourth proportional to 209,091.31, 313,589.68 and 96,709.86 is: 145,042.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,091.31 : 313,589.68 = 96,709.86 : x
  2. Step 2: Convert to fraction form
    209,091.31/313,589.68 = 96,709.86/x
  3. Step 3: Cross multiply
    209,091.31x = 313,589.68 × 96,709.86
  4. Step 4: Simplify right side
    209,091.31x = 30,327,214,050.24
  5. Step 5: Solve for x
    x = 30,327,214,050.24/209,091.31
  6. Step 6: Final answer
    x = 145,042.92

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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.