Finding the Fourth Proportional to 159,791.94, 220,505.49 and 91,761.05
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Solution
The fourth proportional to 159,791.94, 220,505.49 and 91,761.05 is: 126,626.00
Step by Step Solution
- Step 1: Write the proportion equation
159,791.94 : 220,505.49 = 91,761.05 : x - Step 2: Convert to fraction form
159,791.94/220,505.49 = 91,761.05/x - Step 3: Cross multiply
159,791.94x = 220,505.49 × 91,761.05 - Step 4: Simplify right side
159,791.94x = 20,233,814,190.64 - Step 5: Solve for x
x = 20,233,814,190.64/159,791.94 - Step 6: Final answer
x = 126,626.00
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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.