Finding the Fourth Proportional to 163,287.48, 225,349.74 and 91,672.20
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Solution
The fourth proportional to 163,287.48, 225,349.74 and 91,672.20 is: 126,514.94
Step by Step Solution
- Step 1: Write the proportion equation
163,287.48 : 225,349.74 = 91,672.20 : x - Step 2: Convert to fraction form
163,287.48/225,349.74 = 91,672.20/x - Step 3: Cross multiply
163,287.48x = 225,349.74 × 91,672.20 - Step 4: Simplify right side
163,287.48x = 20,658,306,435.23 - Step 5: Solve for x
x = 20,658,306,435.23/163,287.48 - Step 6: Final answer
x = 126,514.94
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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.