Finding the Fourth Proportional to 126,136.74, 189,205.81 and 32,642.49
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Solution
The fourth proportional to 126,136.74, 189,205.81 and 32,642.49 is: 48,963.92
Step by Step Solution
- Step 1: Write the proportion equation
126,136.74 : 189,205.81 = 32,642.49 : x - Step 2: Convert to fraction form
126,136.74/189,205.81 = 32,642.49/x - Step 3: Cross multiply
126,136.74x = 189,205.81 × 32,642.49 - Step 4: Simplify right side
126,136.74x = 6,176,149,388.78 - Step 5: Solve for x
x = 6,176,149,388.78/126,136.74 - Step 6: Final answer
x = 48,963.92
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1.5x scale
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.