Finding the Fourth Proportional to 203,721.15, 281,121.84 and 113,072.70
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Solution
The fourth proportional to 203,721.15, 281,121.84 and 113,072.70 is: 156,032.92
Step by Step Solution
- Step 1: Write the proportion equation
203,721.15 : 281,121.84 = 113,072.70 : x - Step 2: Convert to fraction form
203,721.15/281,121.84 = 113,072.70/x - Step 3: Cross multiply
203,721.15x = 281,121.84 × 113,072.70 - Step 4: Simplify right side
203,721.15x = 31,787,205,477.77 - Step 5: Solve for x
x = 31,787,205,477.77/203,721.15 - Step 6: Final answer
x = 156,032.92
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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.