Finding the Fourth Proportional to 146,639.56, 202,361.88 and 79,571.56
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Solution
The fourth proportional to 146,639.56, 202,361.88 and 79,571.56 is: 109,808.37
Step by Step Solution
- Step 1: Write the proportion equation
146,639.56 : 202,361.88 = 79,571.56 : x - Step 2: Convert to fraction form
146,639.56/202,361.88 = 79,571.56/x - Step 3: Cross multiply
146,639.56x = 202,361.88 × 79,571.56 - Step 4: Simplify right side
146,639.56x = 16,102,250,476.13 - Step 5: Solve for x
x = 16,102,250,476.13/146,639.56 - Step 6: Final answer
x = 109,808.37
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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.