Home / 112,626.20-155,408.78-67,294.60

Finding the Fourth Proportional to 112,626.20, 155,408.78 and 67,294.60

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Solution

The fourth proportional to 112,626.20, 155,408.78 and 67,294.60 is: 92,857.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,626.20 : 155,408.78 = 67,294.60 : x
  2. Step 2: Convert to fraction form
    112,626.20/155,408.78 = 67,294.60/x
  3. Step 3: Cross multiply
    112,626.20x = 155,408.78 × 67,294.60
  4. Step 4: Simplify right side
    112,626.20x = 10,458,171,087.77
  5. Step 5: Solve for x
    x = 10,458,171,087.77/112,626.20
  6. Step 6: Final answer
    x = 92,857.36

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1.5x scale

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.