Home / 88,198.98-121,716.78-47,912.73

Finding the Fourth Proportional to 88,198.98, 121,716.78 and 47,912.73

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Solution

The fourth proportional to 88,198.98, 121,716.78 and 47,912.73 is: 66,120.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,198.98 : 121,716.78 = 47,912.73 : x
  2. Step 2: Convert to fraction form
    88,198.98/121,716.78 = 47,912.73/x
  3. Step 3: Cross multiply
    88,198.98x = 121,716.78 × 47,912.73
  4. Step 4: Simplify right side
    88,198.98x = 5,831,783,216.61
  5. Step 5: Solve for x
    x = 5,831,783,216.61/88,198.98
  6. Step 6: Final answer
    x = 66,120.76

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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.