Finding the Fourth Proportional to 122,571.26, 169,129.92 and 68,845.98
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Solution
The fourth proportional to 122,571.26, 169,129.92 and 68,845.98 is: 94,997.12
Step by Step Solution
- Step 1: Write the proportion equation
122,571.26 : 169,129.92 = 68,845.98 : x - Step 2: Convert to fraction form
122,571.26/169,129.92 = 68,845.98/x - Step 3: Cross multiply
122,571.26x = 169,129.92 × 68,845.98 - Step 4: Simplify right side
122,571.26x = 11,643,915,982.13 - Step 5: Solve for x
x = 11,643,915,982.13/122,571.26 - Step 6: Final answer
x = 94,997.12
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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.