Finding the Fourth Proportional to 100,859.20, 151,218.74 and 44,668.68
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Solution
The fourth proportional to 100,859.20, 151,218.74 and 44,668.68 is: 66,971.99
Step by Step Solution
- Step 1: Write the proportion equation
100,859.20 : 151,218.74 = 44,668.68 : x - Step 2: Convert to fraction form
100,859.20/151,218.74 = 44,668.68/x - Step 3: Cross multiply
100,859.20x = 151,218.74 × 44,668.68 - Step 4: Simplify right side
100,859.20x = 6,754,741,507.06 - Step 5: Solve for x
x = 6,754,741,507.06/100,859.20 - Step 6: Final answer
x = 66,971.99
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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.