Finding the Fourth Proportional to 163,713.26, 225,921.94 and 91,115.66
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Solution
The fourth proportional to 163,713.26, 225,921.94 and 91,115.66 is: 125,738.29
Step by Step Solution
- Step 1: Write the proportion equation
163,713.26 : 225,921.94 = 91,115.66 : x - Step 2: Convert to fraction form
163,713.26/225,921.94 = 91,115.66/x - Step 3: Cross multiply
163,713.26x = 225,921.94 × 91,115.66 - Step 4: Simplify right side
163,713.26x = 20,585,025,314.18 - Step 5: Solve for x
x = 20,585,025,314.18/163,713.26 - Step 6: Final answer
x = 125,738.29
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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.