Finding the Fourth Proportional to 129,918.21, 194,882.73 and 41,169.75
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Solution
The fourth proportional to 129,918.21, 194,882.73 and 41,169.75 is: 61,756.34
Step by Step Solution
- Step 1: Write the proportion equation
129,918.21 : 194,882.73 = 41,169.75 : x - Step 2: Convert to fraction form
129,918.21/194,882.73 = 41,169.75/x - Step 3: Cross multiply
129,918.21x = 194,882.73 × 41,169.75 - Step 4: Simplify right side
129,918.21x = 8,023,273,273.42 - Step 5: Solve for x
x = 8,023,273,273.42/129,918.21 - Step 6: Final answer
x = 61,756.34
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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.