Home / 122,234.12-168,692.82-71,942.84

Finding the Fourth Proportional to 122,234.12, 168,692.82 and 71,942.84

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Solution

The fourth proportional to 122,234.12, 168,692.82 and 71,942.84 is: 99,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,234.12 : 168,692.82 = 71,942.84 : x
  2. Step 2: Convert to fraction form
    122,234.12/168,692.82 = 71,942.84/x
  3. Step 3: Cross multiply
    122,234.12x = 168,692.82 × 71,942.84
  4. Step 4: Simplify right side
    122,234.12x = 12,136,240,558.41
  5. Step 5: Solve for x
    x = 12,136,240,558.41/122,234.12
  6. Step 6: Final answer
    x = 99,286.85

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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.