Finding the Fourth Proportional to 154,961.62, 232,566.96 and 80,103.67
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Solution
The fourth proportional to 154,961.62, 232,566.96 and 80,103.67 is: 120,219.88
Step by Step Solution
- Step 1: Write the proportion equation
154,961.62 : 232,566.96 = 80,103.67 : x - Step 2: Convert to fraction form
154,961.62/232,566.96 = 80,103.67/x - Step 3: Cross multiply
154,961.62x = 232,566.96 × 80,103.67 - Step 4: Simplify right side
154,961.62x = 18,629,467,016.74 - Step 5: Solve for x
x = 18,629,467,016.74/154,961.62 - Step 6: Final answer
x = 120,219.88
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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.