Finding the Fourth Proportional to 120,553.08, 166,367.10 and 66,843.09
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Solution
The fourth proportional to 120,553.08, 166,367.10 and 66,843.09 is: 92,245.60
Step by Step Solution
- Step 1: Write the proportion equation
120,553.08 : 166,367.10 = 66,843.09 : x - Step 2: Convert to fraction form
120,553.08/166,367.10 = 66,843.09/x - Step 3: Cross multiply
120,553.08x = 166,367.10 × 66,843.09 - Step 4: Simplify right side
120,553.08x = 11,120,491,038.34 - Step 5: Solve for x
x = 11,120,491,038.34/120,553.08 - Step 6: Final answer
x = 92,245.60
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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.