Finding the Fourth Proportional to 163,338.62, 225,391.88 and 91,704.65
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Solution
The fourth proportional to 163,338.62, 225,391.88 and 91,704.65 is: 126,543.76
Step by Step Solution
- Step 1: Write the proportion equation
163,338.62 : 225,391.88 = 91,704.65 : x - Step 2: Convert to fraction form
163,338.62/225,391.88 = 91,704.65/x - Step 3: Cross multiply
163,338.62x = 225,391.88 × 91,704.65 - Step 4: Simplify right side
163,338.62x = 20,669,482,570.54 - Step 5: Solve for x
x = 20,669,482,570.54/163,338.62 - Step 6: Final answer
x = 126,543.76
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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.