Finding the Fourth Proportional to 163,436.20, 225,540.60 and 91,814.70
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Solution
The fourth proportional to 163,436.20, 225,540.60 and 91,814.70 is: 126,703.52
Step by Step Solution
- Step 1: Write the proportion equation
163,436.20 : 225,540.60 = 91,814.70 : x - Step 2: Convert to fraction form
163,436.20/225,540.60 = 91,814.70/x - Step 3: Cross multiply
163,436.20x = 225,540.60 × 91,814.70 - Step 4: Simplify right side
163,436.20x = 20,707,942,526.82 - Step 5: Solve for x
x = 20,707,942,526.82/163,436.20 - Step 6: Final answer
x = 126,703.52
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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.