Finding the Fourth Proportional to 129,556.19, 194,360.41 and 54,676.42
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Solution
The fourth proportional to 129,556.19, 194,360.41 and 54,676.42 is: 82,025.65
Step by Step Solution
- Step 1: Write the proportion equation
129,556.19 : 194,360.41 = 54,676.42 : x - Step 2: Convert to fraction form
129,556.19/194,360.41 = 54,676.42/x - Step 3: Cross multiply
129,556.19x = 194,360.41 × 54,676.42 - Step 4: Simplify right side
129,556.19x = 10,626,930,300.04 - Step 5: Solve for x
x = 10,626,930,300.04/129,556.19 - Step 6: Final answer
x = 82,025.65
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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.