Finding the Fourth Proportional to 151,851.20, 209,554.67 and 88,193.09
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Solution
The fourth proportional to 151,851.20, 209,554.67 and 88,193.09 is: 121,706.47
Step by Step Solution
- Step 1: Write the proportion equation
151,851.20 : 209,554.67 = 88,193.09 : x - Step 2: Convert to fraction form
151,851.20/209,554.67 = 88,193.09/x - Step 3: Cross multiply
151,851.20x = 209,554.67 × 88,193.09 - Step 4: Simplify right side
151,851.20x = 18,481,272,382.49 - Step 5: Solve for x
x = 18,481,272,382.49/151,851.20 - Step 6: Final answer
x = 121,706.47
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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.