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Finding the Fourth Proportional to 89,993.28, 134,894 and 67,737.84

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Solution

The fourth proportional to 89,993.28, 134,894 and 67,737.84 is: 101,534.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,993.28 : 134,894 = 67,737.84 : x
  2. Step 2: Convert to fraction form
    89,993.28/134,894 = 67,737.84/x
  3. Step 3: Cross multiply
    89,993.28x = 134,894 × 67,737.84
  4. Step 4: Simplify right side
    89,993.28x = 9,137,428,188.96
  5. Step 5: Solve for x
    x = 9,137,428,188.96/89,993.28
  6. Step 6: Final answer
    x = 101,534.56

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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.