Finding the Fourth Proportional to 129,481.20, 194,249.52 and 73,347.84
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Solution
The fourth proportional to 129,481.20, 194,249.52 and 73,347.84 is: 110,037.46
Step by Step Solution
- Step 1: Write the proportion equation
129,481.20 : 194,249.52 = 73,347.84 : x - Step 2: Convert to fraction form
129,481.20/194,249.52 = 73,347.84/x - Step 3: Cross multiply
129,481.20x = 194,249.52 × 73,347.84 - Step 4: Simplify right side
129,481.20x = 14,247,782,713.04 - Step 5: Solve for x
x = 14,247,782,713.04/129,481.20 - Step 6: Final answer
x = 110,037.46
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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.