Finding the Fourth Proportional to 137,651.05, 206,451.96 and 87,582.41
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Solution
The fourth proportional to 137,651.05, 206,451.96 and 87,582.41 is: 131,357.96
Step by Step Solution
- Step 1: Write the proportion equation
137,651.05 : 206,451.96 = 87,582.41 : x - Step 2: Convert to fraction form
137,651.05/206,451.96 = 87,582.41/x - Step 3: Cross multiply
137,651.05x = 206,451.96 × 87,582.41 - Step 4: Simplify right side
137,651.05x = 18,081,560,780.82 - Step 5: Solve for x
x = 18,081,560,780.82/137,651.05 - Step 6: Final answer
x = 131,357.96
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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.