Home / 209,481.19-289,081.61-113,986.24

Finding the Fourth Proportional to 209,481.19, 289,081.61 and 113,986.24

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Solution

The fourth proportional to 209,481.19, 289,081.61 and 113,986.24 is: 157,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,481.19 : 289,081.61 = 113,986.24 : x
  2. Step 2: Convert to fraction form
    209,481.19/289,081.61 = 113,986.24/x
  3. Step 3: Cross multiply
    209,481.19x = 289,081.61 × 113,986.24
  4. Step 4: Simplify right side
    209,481.19x = 32,951,324,911.86
  5. Step 5: Solve for x
    x = 32,951,324,911.86/209,481.19
  6. Step 6: Final answer
    x = 157,299.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.