Finding the Fourth Proportional to 119,472.36, 164,845.36 and 69,142.20
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Solution
The fourth proportional to 119,472.36, 164,845.36 and 69,142.20 is: 95,400.90
Step by Step Solution
- Step 1: Write the proportion equation
119,472.36 : 164,845.36 = 69,142.20 : x - Step 2: Convert to fraction form
119,472.36/164,845.36 = 69,142.20/x - Step 3: Cross multiply
119,472.36x = 164,845.36 × 69,142.20 - Step 4: Simplify right side
119,472.36x = 11,397,770,850.19 - Step 5: Solve for x
x = 11,397,770,850.19/119,472.36 - Step 6: Final answer
x = 95,400.90
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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.