Home / 209,519.16-289,136.49-114,026.54

Finding the Fourth Proportional to 209,519.16, 289,136.49 and 114,026.54

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Solution

The fourth proportional to 209,519.16, 289,136.49 and 114,026.54 is: 157,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,519.16 : 289,136.49 = 114,026.54 : x
  2. Step 2: Convert to fraction form
    209,519.16/289,136.49 = 114,026.54/x
  3. Step 3: Cross multiply
    209,519.16x = 289,136.49 × 114,026.54
  4. Step 4: Simplify right side
    209,519.16x = 32,969,231,669.16
  5. Step 5: Solve for x
    x = 32,969,231,669.16/209,519.16
  6. Step 6: Final answer
    x = 157,356.65

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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.