Finding the Fourth Proportional to 129,955.28, 194,943.12 and 41,213.84
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Solution
The fourth proportional to 129,955.28, 194,943.12 and 41,213.84 is: 61,823.99
Step by Step Solution
- Step 1: Write the proportion equation
129,955.28 : 194,943.12 = 41,213.84 : x - Step 2: Convert to fraction form
129,955.28/194,943.12 = 41,213.84/x - Step 3: Cross multiply
129,955.28x = 194,943.12 × 41,213.84 - Step 4: Simplify right side
129,955.28x = 8,034,354,556.78 - Step 5: Solve for x
x = 8,034,354,556.78/129,955.28 - Step 6: Final answer
x = 61,823.99
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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.