Finding the Fourth Proportional to 129,615.44, 194,449.61 and 73,480.62
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Solution
The fourth proportional to 129,615.44, 194,449.61 and 73,480.62 is: 110,235.92
Step by Step Solution
- Step 1: Write the proportion equation
129,615.44 : 194,449.61 = 73,480.62 : x - Step 2: Convert to fraction form
129,615.44/194,449.61 = 73,480.62/x - Step 3: Cross multiply
129,615.44x = 194,449.61 × 73,480.62 - Step 4: Simplify right side
129,615.44x = 14,288,277,720.67 - Step 5: Solve for x
x = 14,288,277,720.67/129,615.44 - Step 6: Final answer
x = 110,235.92
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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.