Finding the Fourth Proportional to 192,721.36, 289,205.43 and 104,036.62
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Solution
The fourth proportional to 192,721.36, 289,205.43 and 104,036.62 is: 156,121.54
Step by Step Solution
- Step 1: Write the proportion equation
192,721.36 : 289,205.43 = 104,036.62 : x - Step 2: Convert to fraction form
192,721.36/289,205.43 = 104,036.62/x - Step 3: Cross multiply
192,721.36x = 289,205.43 × 104,036.62 - Step 4: Simplify right side
192,721.36x = 30,087,955,422.85 - Step 5: Solve for x
x = 30,087,955,422.85/192,721.36 - Step 6: Final answer
x = 156,121.54
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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.