Finding the Fourth Proportional to 203,711.60, 281,113.68 and 113,071.36
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Solution
The fourth proportional to 203,711.60, 281,113.68 and 113,071.36 is: 156,033.85
Step by Step Solution
- Step 1: Write the proportion equation
203,711.60 : 281,113.68 = 113,071.36 : x - Step 2: Convert to fraction form
203,711.60/281,113.68 = 113,071.36/x - Step 3: Cross multiply
203,711.60x = 281,113.68 × 113,071.36 - Step 4: Simplify right side
203,711.60x = 31,785,906,112.20 - Step 5: Solve for x
x = 31,785,906,112.20/203,711.60 - Step 6: Final answer
x = 156,033.85
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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.