Finding the Fourth Proportional to 141,680.16, 212,651.64 and 71,608.68
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Solution
The fourth proportional to 141,680.16, 212,651.64 and 71,608.68 is: 107,479.43
Step by Step Solution
- Step 1: Write the proportion equation
141,680.16 : 212,651.64 = 71,608.68 : x - Step 2: Convert to fraction form
141,680.16/212,651.64 = 71,608.68/x - Step 3: Cross multiply
141,680.16x = 212,651.64 × 71,608.68 - Step 4: Simplify right side
141,680.16x = 15,227,703,240.24 - Step 5: Solve for x
x = 15,227,703,240.24/141,680.16 - Step 6: Final answer
x = 107,479.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.