Finding the Fourth Proportional to 120,418.38, 180,575.19 and 64,245.96
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Solution
The fourth proportional to 120,418.38, 180,575.19 and 64,245.96 is: 96,340.99
Step by Step Solution
- Step 1: Write the proportion equation
120,418.38 : 180,575.19 = 64,245.96 : x - Step 2: Convert to fraction form
120,418.38/180,575.19 = 64,245.96/x - Step 3: Cross multiply
120,418.38x = 180,575.19 × 64,245.96 - Step 4: Simplify right side
120,418.38x = 11,601,226,433.73 - Step 5: Solve for x
x = 11,601,226,433.73/120,418.38 - Step 6: Final answer
x = 96,340.99
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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.