Finding the Fourth Proportional to 128,443.26, 192,614.97 and 44,187.42
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Solution
The fourth proportional to 128,443.26, 192,614.97 and 44,187.42 is: 66,263.96
Step by Step Solution
- Step 1: Write the proportion equation
128,443.26 : 192,614.97 = 44,187.42 : x - Step 2: Convert to fraction form
128,443.26/192,614.97 = 44,187.42/x - Step 3: Cross multiply
128,443.26x = 192,614.97 × 44,187.42 - Step 4: Simplify right side
128,443.26x = 8,511,158,577.68 - Step 5: Solve for x
x = 8,511,158,577.68/128,443.26 - Step 6: Final answer
x = 66,263.96
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1.5x scale
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.