Home / 209,961.71-289,751.68-114,469.05

Finding the Fourth Proportional to 209,961.71, 289,751.68 and 114,469.05

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Solution

The fourth proportional to 209,961.71, 289,751.68 and 114,469.05 is: 157,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,961.71 : 289,751.68 = 114,469.05 : x
  2. Step 2: Convert to fraction form
    209,961.71/289,751.68 = 114,469.05/x
  3. Step 3: Cross multiply
    209,961.71x = 289,751.68 × 114,469.05
  4. Step 4: Simplify right side
    209,961.71x = 33,167,599,545.50
  5. Step 5: Solve for x
    x = 33,167,599,545.50/209,961.71
  6. Step 6: Final answer
    x = 157,969.75

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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.