Finding the Fourth Proportional to 203,726.20, 281,137.80 and 113,076.88
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Solution
The fourth proportional to 203,726.20, 281,137.80 and 113,076.88 is: 156,043.68
Step by Step Solution
- Step 1: Write the proportion equation
203,726.20 : 281,137.80 = 113,076.88 : x - Step 2: Convert to fraction form
203,726.20/281,137.80 = 113,076.88/x - Step 3: Cross multiply
203,726.20x = 281,137.80 × 113,076.88 - Step 4: Simplify right side
203,726.20x = 31,790,185,274.06 - Step 5: Solve for x
x = 31,790,185,274.06/203,726.20 - Step 6: Final answer
x = 156,043.68
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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.