Finding the Fourth Proportional to 167,879.12, 231,672.76 and 92,427.62
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Solution
The fourth proportional to 167,879.12, 231,672.76 and 92,427.62 is: 127,549.88
Step by Step Solution
- Step 1: Write the proportion equation
167,879.12 : 231,672.76 = 92,427.62 : x - Step 2: Convert to fraction form
167,879.12/231,672.76 = 92,427.62/x - Step 3: Cross multiply
167,879.12x = 231,672.76 × 92,427.62 - Step 4: Simplify right side
167,879.12x = 21,412,960,436.20 - Step 5: Solve for x
x = 21,412,960,436.20/167,879.12 - Step 6: Final answer
x = 127,549.88
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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.