Home / 209,578.08-289,217.78-114,085.49

Finding the Fourth Proportional to 209,578.08, 289,217.78 and 114,085.49

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Solution

The fourth proportional to 209,578.08, 289,217.78 and 114,085.49 is: 157,438.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,578.08 : 289,217.78 = 114,085.49 : x
  2. Step 2: Convert to fraction form
    209,578.08/289,217.78 = 114,085.49/x
  3. Step 3: Cross multiply
    209,578.08x = 289,217.78 × 114,085.49
  4. Step 4: Simplify right side
    209,578.08x = 32,995,552,827.90
  5. Step 5: Solve for x
    x = 32,995,552,827.90/209,578.08
  6. Step 6: Final answer
    x = 157,438.00

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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.