Finding the Fourth Proportional to 127,692.72, 176,136.12 and 91,825.92
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Solution
The fourth proportional to 127,692.72, 176,136.12 and 91,825.92 is: 126,662.36
Step by Step Solution
- Step 1: Write the proportion equation
127,692.72 : 176,136.12 = 91,825.92 : x - Step 2: Convert to fraction form
127,692.72/176,136.12 = 91,825.92/x - Step 3: Cross multiply
127,692.72x = 176,136.12 × 91,825.92 - Step 4: Simplify right side
127,692.72x = 16,173,861,264.23 - Step 5: Solve for x
x = 16,173,861,264.23/127,692.72 - Step 6: Final answer
x = 126,662.36
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.