Finding the Fourth Proportional to 136,825.19, 188,850.26 and 80,254.79
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Solution
The fourth proportional to 136,825.19, 188,850.26 and 80,254.79 is: 110,770.09
Step by Step Solution
- Step 1: Write the proportion equation
136,825.19 : 188,850.26 = 80,254.79 : x - Step 2: Convert to fraction form
136,825.19/188,850.26 = 80,254.79/x - Step 3: Cross multiply
136,825.19x = 188,850.26 × 80,254.79 - Step 4: Simplify right side
136,825.19x = 15,156,137,957.75 - Step 5: Solve for x
x = 15,156,137,957.75/136,825.19 - Step 6: Final answer
x = 110,770.09
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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.