Home / 269,078.19-403,635.60-89,163.20

Finding the Fourth Proportional to 269,078.19, 403,635.60 and 89,163.20

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Solution

The fourth proportional to 269,078.19, 403,635.60 and 89,163.20 is: 133,750.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,078.19 : 403,635.60 = 89,163.20 : x
  2. Step 2: Convert to fraction form
    269,078.19/403,635.60 = 89,163.20/x
  3. Step 3: Cross multiply
    269,078.19x = 403,635.60 × 89,163.20
  4. Step 4: Simplify right side
    269,078.19x = 35,989,439,711.74
  5. Step 5: Solve for x
    x = 35,989,439,711.74/269,078.19
  6. Step 6: Final answer
    x = 133,750.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.