Finding the Fourth Proportional to 203,720.44, 281,128.84 and 113,076.16
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Solution
The fourth proportional to 203,720.44, 281,128.84 and 113,076.16 is: 156,042.12
Step by Step Solution
- Step 1: Write the proportion equation
203,720.44 : 281,128.84 = 113,076.16 : x - Step 2: Convert to fraction form
203,720.44/281,128.84 = 113,076.16/x - Step 3: Cross multiply
203,720.44x = 281,128.84 × 113,076.16 - Step 4: Simplify right side
203,720.44x = 31,788,969,692.45 - Step 5: Solve for x
x = 31,788,969,692.45/203,720.44 - Step 6: Final answer
x = 156,042.12
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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.