Finding the Fourth Proportional to 116,516.97, 160,819.97 and 82,490.09
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Solution
The fourth proportional to 116,516.97, 160,819.97 and 82,490.09 is: 113,855.11
Step by Step Solution
- Step 1: Write the proportion equation
116,516.97 : 160,819.97 = 82,490.09 : x - Step 2: Convert to fraction form
116,516.97/160,819.97 = 82,490.09/x - Step 3: Cross multiply
116,516.97x = 160,819.97 × 82,490.09 - Step 4: Simplify right side
116,516.97x = 13,266,052,582.55 - Step 5: Solve for x
x = 13,266,052,582.55/116,516.97 - Step 6: Final answer
x = 113,855.11
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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.