Finding the Fourth Proportional to 129,721.08, 194,582.16 and 36,226.56
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Solution
The fourth proportional to 129,721.08, 194,582.16 and 36,226.56 is: 54,339.99
Step by Step Solution
- Step 1: Write the proportion equation
129,721.08 : 194,582.16 = 36,226.56 : x - Step 2: Convert to fraction form
129,721.08/194,582.16 = 36,226.56/x - Step 3: Cross multiply
129,721.08x = 194,582.16 × 36,226.56 - Step 4: Simplify right side
129,721.08x = 7,049,042,294.17 - Step 5: Solve for x
x = 7,049,042,294.17/129,721.08 - Step 6: Final answer
x = 54,339.99
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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.