Finding the Fourth Proportional to 203,772.18, 281,206.74 and 113,126.70
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Solution
The fourth proportional to 203,772.18, 281,206.74 and 113,126.70 is: 156,115.47
Step by Step Solution
- Step 1: Write the proportion equation
203,772.18 : 281,206.74 = 113,126.70 : x - Step 2: Convert to fraction form
203,772.18/281,206.74 = 113,126.70/x - Step 3: Cross multiply
203,772.18x = 281,206.74 × 113,126.70 - Step 4: Simplify right side
203,772.18x = 31,811,990,513.96 - Step 5: Solve for x
x = 31,811,990,513.96/203,772.18 - Step 6: Final answer
x = 156,115.47
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1.5x scale
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.