Finding the Fourth Proportional to 136,436.24, 186,918.33 and 131,322.70
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Solution
The fourth proportional to 136,436.24, 186,918.33 and 131,322.70 is: 179,912.75
Step by Step Solution
- Step 1: Write the proportion equation
136,436.24 : 186,918.33 = 131,322.70 : x - Step 2: Convert to fraction form
136,436.24/186,918.33 = 131,322.70/x - Step 3: Cross multiply
136,436.24x = 186,918.33 × 131,322.70 - Step 4: Simplify right side
136,436.24x = 24,546,618,651.18 - Step 5: Solve for x
x = 24,546,618,651.18/136,436.24 - Step 6: Final answer
x = 179,912.75
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.