Home / 209,766.44-289,468.31-122,559.59

Finding the Fourth Proportional to 209,766.44, 289,468.31 and 122,559.59

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Solution

The fourth proportional to 209,766.44, 289,468.31 and 122,559.59 is: 169,126.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,766.44 : 289,468.31 = 122,559.59 : x
  2. Step 2: Convert to fraction form
    209,766.44/289,468.31 = 122,559.59/x
  3. Step 3: Cross multiply
    209,766.44x = 289,468.31 × 122,559.59
  4. Step 4: Simplify right side
    209,766.44x = 35,477,116,778.79
  5. Step 5: Solve for x
    x = 35,477,116,778.79/209,766.44
  6. Step 6: Final answer
    x = 169,126.75

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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.