Finding the Fourth Proportional to 129,858.18, 194,770.26 and 41,112.18
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Solution
The fourth proportional to 129,858.18, 194,770.26 and 41,112.18 is: 61,662.88
Step by Step Solution
- Step 1: Write the proportion equation
129,858.18 : 194,770.26 = 41,112.18 : x - Step 2: Convert to fraction form
129,858.18/194,770.26 = 41,112.18/x - Step 3: Cross multiply
129,858.18x = 194,770.26 × 41,112.18 - Step 4: Simplify right side
129,858.18x = 8,007,429,987.77 - Step 5: Solve for x
x = 8,007,429,987.77/129,858.18 - Step 6: Final answer
x = 61,662.88
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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.