Finding the Fourth Proportional to 122,473.11, 169,022.66 and 68,761.65
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Solution
The fourth proportional to 122,473.11, 169,022.66 and 68,761.65 is: 94,896.56
Step by Step Solution
- Step 1: Write the proportion equation
122,473.11 : 169,022.66 = 68,761.65 : x - Step 2: Convert to fraction form
122,473.11/169,022.66 = 68,761.65/x - Step 3: Cross multiply
122,473.11x = 169,022.66 × 68,761.65 - Step 4: Simplify right side
122,473.11x = 11,622,276,645.18 - Step 5: Solve for x
x = 11,622,276,645.18/122,473.11 - Step 6: Final answer
x = 94,896.56
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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.