Home / 209,874.05-289,617.75-114,378.69

Finding the Fourth Proportional to 209,874.05, 289,617.75 and 114,378.69

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Solution

The fourth proportional to 209,874.05, 289,617.75 and 114,378.69 is: 157,838.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,874.05 : 289,617.75 = 114,378.69 : x
  2. Step 2: Convert to fraction form
    209,874.05/289,617.75 = 114,378.69/x
  3. Step 3: Cross multiply
    209,874.05x = 289,617.75 × 114,378.69
  4. Step 4: Simplify right side
    209,874.05x = 33,126,098,845.75
  5. Step 5: Solve for x
    x = 33,126,098,845.75/209,874.05
  6. Step 6: Final answer
    x = 157,838.00

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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.