Finding the Fourth Proportional to 203,753.70, 281,213.64 and 113,138.64
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Solution
The fourth proportional to 203,753.70, 281,213.64 and 113,138.64 is: 156,149.94
Step by Step Solution
- Step 1: Write the proportion equation
203,753.70 : 281,213.64 = 113,138.64 : x - Step 2: Convert to fraction form
203,753.70/281,213.64 = 113,138.64/x - Step 3: Cross multiply
203,753.70x = 281,213.64 × 113,138.64 - Step 4: Simplify right side
203,753.70x = 31,816,128,779.05 - Step 5: Solve for x
x = 31,816,128,779.05/203,753.70 - Step 6: Final answer
x = 156,149.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.