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Finding the Fourth Proportional to 133,025.40, 199,538.08 and 88,738.64

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Solution

The fourth proportional to 133,025.40, 199,538.08 and 88,738.64 is: 133,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,025.40 : 199,538.08 = 88,738.64 : x
  2. Step 2: Convert to fraction form
    133,025.40/199,538.08 = 88,738.64/x
  3. Step 3: Cross multiply
    133,025.40x = 199,538.08 × 88,738.64
  4. Step 4: Simplify right side
    133,025.40x = 17,706,737,847.41
  5. Step 5: Solve for x
    x = 17,706,737,847.41/133,025.40
  6. Step 6: Final answer
    x = 133,107.95

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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.