Finding the Fourth Proportional to 126,396.12, 189,629.64 and 55,324.98
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Solution
The fourth proportional to 126,396.12, 189,629.64 and 55,324.98 is: 83,002.99
Step by Step Solution
- Step 1: Write the proportion equation
126,396.12 : 189,629.64 = 55,324.98 : x - Step 2: Convert to fraction form
126,396.12/189,629.64 = 55,324.98/x - Step 3: Cross multiply
126,396.12x = 189,629.64 × 55,324.98 - Step 4: Simplify right side
126,396.12x = 10,491,256,040.41 - Step 5: Solve for x
x = 10,491,256,040.41/126,396.12 - Step 6: Final answer
x = 83,002.99
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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.