Finding the Fourth Proportional to 129,855.80, 194,759.04 and 45,596.09
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Solution
The fourth proportional to 129,855.80, 194,759.04 and 45,596.09 is: 68,385.48
Step by Step Solution
- Step 1: Write the proportion equation
129,855.80 : 194,759.04 = 45,596.09 : x - Step 2: Convert to fraction form
129,855.80/194,759.04 = 45,596.09/x - Step 3: Cross multiply
129,855.80x = 194,759.04 × 45,596.09 - Step 4: Simplify right side
129,855.80x = 8,880,250,716.15 - Step 5: Solve for x
x = 8,880,250,716.15/129,855.80 - Step 6: Final answer
x = 68,385.48
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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.