Finding the Fourth Proportional to 126,640.09, 174,764.70 and 69,278.17
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Solution
The fourth proportional to 126,640.09, 174,764.70 and 69,278.17 is: 95,604.63
Step by Step Solution
- Step 1: Write the proportion equation
126,640.09 : 174,764.70 = 69,278.17 : x - Step 2: Convert to fraction form
126,640.09/174,764.70 = 69,278.17/x - Step 3: Cross multiply
126,640.09x = 174,764.70 × 69,278.17 - Step 4: Simplify right side
126,640.09x = 12,107,379,287.20 - Step 5: Solve for x
x = 12,107,379,287.20/126,640.09 - Step 6: Final answer
x = 95,604.63
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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.