Finding the Fourth Proportional to 154,261.44, 212,880.17 and 86,278.14
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Solution
The fourth proportional to 154,261.44, 212,880.17 and 86,278.14 is: 119,063.49
Step by Step Solution
- Step 1: Write the proportion equation
154,261.44 : 212,880.17 = 86,278.14 : x - Step 2: Convert to fraction form
154,261.44/212,880.17 = 86,278.14/x - Step 3: Cross multiply
154,261.44x = 212,880.17 × 86,278.14 - Step 4: Simplify right side
154,261.44x = 18,366,904,679.09 - Step 5: Solve for x
x = 18,366,904,679.09/154,261.44 - Step 6: Final answer
x = 119,063.49
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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.