Finding the Fourth Proportional to 129,582.18, 194,124.24 and 79,516.44
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Solution
The fourth proportional to 129,582.18, 194,124.24 and 79,516.44 is: 119,121.85
Step by Step Solution
- Step 1: Write the proportion equation
129,582.18 : 194,124.24 = 79,516.44 : x - Step 2: Convert to fraction form
129,582.18/194,124.24 = 79,516.44/x - Step 3: Cross multiply
129,582.18x = 194,124.24 × 79,516.44 - Step 4: Simplify right side
129,582.18x = 15,436,068,482.51 - Step 5: Solve for x
x = 15,436,068,482.51/129,582.18 - Step 6: Final answer
x = 119,121.85
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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.