Finding the Fourth Proportional to 122,571.36, 169,183.62 and 74,173.32
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Solution
The fourth proportional to 122,571.36, 169,183.62 and 74,173.32 is: 102,380.45
Step by Step Solution
- Step 1: Write the proportion equation
122,571.36 : 169,183.62 = 74,173.32 : x - Step 2: Convert to fraction form
122,571.36/169,183.62 = 74,173.32/x - Step 3: Cross multiply
122,571.36x = 169,183.62 × 74,173.32 - Step 4: Simplify right side
122,571.36x = 12,548,910,785.02 - Step 5: Solve for x
x = 12,548,910,785.02/122,571.36 - Step 6: Final answer
x = 102,380.45
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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.