Finding the Fourth Proportional to 150,105.62, 207,144.97 and 82,121.38
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Solution
The fourth proportional to 150,105.62, 207,144.97 and 82,121.38 is: 113,327.07
Step by Step Solution
- Step 1: Write the proportion equation
150,105.62 : 207,144.97 = 82,121.38 : x - Step 2: Convert to fraction form
150,105.62/207,144.97 = 82,121.38/x - Step 3: Cross multiply
150,105.62x = 207,144.97 × 82,121.38 - Step 4: Simplify right side
150,105.62x = 17,011,030,073.29 - Step 5: Solve for x
x = 17,011,030,073.29/150,105.62 - Step 6: Final answer
x = 113,327.07
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1.5x scale
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.