Finding the Fourth Proportional to 112,836.07, 169,249.99 and 45,388.99
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Solution
The fourth proportional to 112,836.07, 169,249.99 and 45,388.99 is: 68,081.83
Step by Step Solution
- Step 1: Write the proportion equation
112,836.07 : 169,249.99 = 45,388.99 : x - Step 2: Convert to fraction form
112,836.07/169,249.99 = 45,388.99/x - Step 3: Cross multiply
112,836.07x = 169,249.99 × 45,388.99 - Step 4: Simplify right side
112,836.07x = 7,682,086,103.61 - Step 5: Solve for x
x = 7,682,086,103.61/112,836.07 - Step 6: Final answer
x = 68,081.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.