Finding the Fourth Proportional to 128,514.12, 192,765.37 and 33,742.08
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Solution
The fourth proportional to 128,514.12, 192,765.37 and 33,742.08 is: 50,611.59
Step by Step Solution
- Step 1: Write the proportion equation
128,514.12 : 192,765.37 = 33,742.08 : x - Step 2: Convert to fraction form
128,514.12/192,765.37 = 33,742.08/x - Step 3: Cross multiply
128,514.12x = 192,765.37 × 33,742.08 - Step 4: Simplify right side
128,514.12x = 6,504,304,535.77 - Step 5: Solve for x
x = 6,504,304,535.77/128,514.12 - Step 6: Final answer
x = 50,611.59
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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.