Finding the Fourth Proportional to 129,015.80, 193,509.18 and 44,760.44
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Solution
The fourth proportional to 129,015.80, 193,509.18 and 44,760.44 is: 67,135.62
Step by Step Solution
- Step 1: Write the proportion equation
129,015.80 : 193,509.18 = 44,760.44 : x - Step 2: Convert to fraction form
129,015.80/193,509.18 = 44,760.44/x - Step 3: Cross multiply
129,015.80x = 193,509.18 × 44,760.44 - Step 4: Simplify right side
129,015.80x = 8,661,556,040.84 - Step 5: Solve for x
x = 8,661,556,040.84/129,015.80 - Step 6: Final answer
x = 67,135.62
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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.