Finding the Fourth Proportional to 126,114.44, 189,175.62 and 47,213.60
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Solution
The fourth proportional to 126,114.44, 189,175.62 and 47,213.60 is: 70,821.88
Step by Step Solution
- Step 1: Write the proportion equation
126,114.44 : 189,175.62 = 47,213.60 : x - Step 2: Convert to fraction form
126,114.44/189,175.62 = 47,213.60/x - Step 3: Cross multiply
126,114.44x = 189,175.62 × 47,213.60 - Step 4: Simplify right side
126,114.44x = 8,931,662,052.43 - Step 5: Solve for x
x = 8,931,662,052.43/126,114.44 - Step 6: Final answer
x = 70,821.88
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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.