Finding the Fourth Proportional to 126,136.82, 189,205.99 and 37,391.09
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Solution
The fourth proportional to 126,136.82, 189,205.99 and 37,391.09 is: 56,086.85
Step by Step Solution
- Step 1: Write the proportion equation
126,136.82 : 189,205.99 = 37,391.09 : x - Step 2: Convert to fraction form
126,136.82/189,205.99 = 37,391.09/x - Step 3: Cross multiply
126,136.82x = 189,205.99 × 37,391.09 - Step 4: Simplify right side
126,136.82x = 7,074,617,161.12 - Step 5: Solve for x
x = 7,074,617,161.12/126,136.82 - Step 6: Final answer
x = 56,086.85
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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.