Finding the Fourth Proportional to 102,729.42, 154,138.68 and 36,217.08
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Solution
The fourth proportional to 102,729.42, 154,138.68 and 36,217.08 is: 54,341.33
Step by Step Solution
- Step 1: Write the proportion equation
102,729.42 : 154,138.68 = 36,217.08 : x - Step 2: Convert to fraction form
102,729.42/154,138.68 = 36,217.08/x - Step 3: Cross multiply
102,729.42x = 154,138.68 × 36,217.08 - Step 4: Simplify right side
102,729.42x = 5,582,452,904.65 - Step 5: Solve for x
x = 5,582,452,904.65/102,729.42 - Step 6: Final answer
x = 54,341.33
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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.