Finding the Fourth Proportional to 120,469.87, 166,257.99 and 66,759.98
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Solution
The fourth proportional to 120,469.87, 166,257.99 and 66,759.98 is: 92,134.08
Step by Step Solution
- Step 1: Write the proportion equation
120,469.87 : 166,257.99 = 66,759.98 : x - Step 2: Convert to fraction form
120,469.87/166,257.99 = 66,759.98/x - Step 3: Cross multiply
120,469.87x = 166,257.99 × 66,759.98 - Step 4: Simplify right side
120,469.87x = 11,099,379,753.44 - Step 5: Solve for x
x = 11,099,379,753.44/120,469.87 - Step 6: Final answer
x = 92,134.08
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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.