Finding the Fourth Proportional to 122,583.36, 169,182.09 and 68,872.53
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Solution
The fourth proportional to 122,583.36, 169,182.09 and 68,872.53 is: 95,053.67
Step by Step Solution
- Step 1: Write the proportion equation
122,583.36 : 169,182.09 = 68,872.53 : x - Step 2: Convert to fraction form
122,583.36/169,182.09 = 68,872.53/x - Step 3: Cross multiply
122,583.36x = 169,182.09 × 68,872.53 - Step 4: Simplify right side
122,583.36x = 11,651,998,568.99 - Step 5: Solve for x
x = 11,651,998,568.99/122,583.36 - Step 6: Final answer
x = 95,053.67
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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.