Home / 209,763.20-289,470.61-114,267.85

Finding the Fourth Proportional to 209,763.20, 289,470.61 and 114,267.85

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Solution

The fourth proportional to 209,763.20, 289,470.61 and 114,267.85 is: 157,688.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,763.20 : 289,470.61 = 114,267.85 : x
  2. Step 2: Convert to fraction form
    209,763.20/289,470.61 = 114,267.85/x
  3. Step 3: Cross multiply
    209,763.20x = 289,470.61 × 114,267.85
  4. Step 4: Simplify right side
    209,763.20x = 33,077,183,662.05
  5. Step 5: Solve for x
    x = 33,077,183,662.05/209,763.20
  6. Step 6: Final answer
    x = 157,688.21

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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.