Finding the Fourth Proportional to 151,815.18, 227,861.66 and 76,986.97
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Solution
The fourth proportional to 151,815.18, 227,861.66 and 76,986.97 is: 115,550.89
Step by Step Solution
- Step 1: Write the proportion equation
151,815.18 : 227,861.66 = 76,986.97 : x - Step 2: Convert to fraction form
151,815.18/227,861.66 = 76,986.97/x - Step 3: Cross multiply
151,815.18x = 227,861.66 × 76,986.97 - Step 4: Simplify right side
151,815.18x = 17,542,379,254.05 - Step 5: Solve for x
x = 17,542,379,254.05/151,815.18 - Step 6: Final answer
x = 115,550.89
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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.