Finding the Fourth Proportional to 122,568.12, 169,130.79 and 68,859.09
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Solution
The fourth proportional to 122,568.12, 169,130.79 and 68,859.09 is: 95,018.12
Step by Step Solution
- Step 1: Write the proportion equation
122,568.12 : 169,130.79 = 68,859.09 : x - Step 2: Convert to fraction form
122,568.12/169,130.79 = 68,859.09/x - Step 3: Cross multiply
122,568.12x = 169,130.79 × 68,859.09 - Step 4: Simplify right side
122,568.12x = 11,646,192,290.38 - Step 5: Solve for x
x = 11,646,192,290.38/122,568.12 - Step 6: Final answer
x = 95,018.12
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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.