Finding the Fourth Proportional to 154,227.75, 212,832.82 and 86,243.94
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Solution
The fourth proportional to 154,227.75, 212,832.82 and 86,243.94 is: 119,015.82
Step by Step Solution
- Step 1: Write the proportion equation
154,227.75 : 212,832.82 = 86,243.94 : x - Step 2: Convert to fraction form
154,227.75/212,832.82 = 86,243.94/x - Step 3: Cross multiply
154,227.75x = 212,832.82 × 86,243.94 - Step 4: Simplify right side
154,227.75x = 18,355,541,065.92 - Step 5: Solve for x
x = 18,355,541,065.92/154,227.75 - Step 6: Final answer
x = 119,015.82
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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.