Finding the Fourth Proportional to 115,965.60, 173,942.68 and 67,960.96
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Solution
The fourth proportional to 115,965.60, 173,942.68 and 67,960.96 is: 101,938.09
Step by Step Solution
- Step 1: Write the proportion equation
115,965.60 : 173,942.68 = 67,960.96 : x - Step 2: Convert to fraction form
115,965.60/173,942.68 = 67,960.96/x - Step 3: Cross multiply
115,965.60x = 173,942.68 × 67,960.96 - Step 4: Simplify right side
115,965.60x = 11,821,311,517.77 - Step 5: Solve for x
x = 11,821,311,517.77/115,965.60 - Step 6: Final answer
x = 101,938.09
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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.