Finding the Fourth Proportional to 120,331.96, 166,104.62 and 107,734.84
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Solution
The fourth proportional to 120,331.96, 166,104.62 and 107,734.84 is: 148,715.72
Step by Step Solution
- Step 1: Write the proportion equation
120,331.96 : 166,104.62 = 107,734.84 : x - Step 2: Convert to fraction form
120,331.96/166,104.62 = 107,734.84/x - Step 3: Cross multiply
120,331.96x = 166,104.62 × 107,734.84 - Step 4: Simplify right side
120,331.96x = 17,895,254,658.96 - Step 5: Solve for x
x = 17,895,254,658.96/120,331.96 - Step 6: Final answer
x = 148,715.72
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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.