Finding the Fourth Proportional to 127.23, 190.35 and 123.99
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Solution
The fourth proportional to 127.23, 190.35 and 123.99 is: 185.50
Step by Step Solution
- Step 1: Write the proportion equation
127.23 : 190.35 = 123.99 : x - Step 2: Convert to fraction form
127.23/190.35 = 123.99/x - Step 3: Cross multiply
127.23x = 190.35 × 123.99 - Step 4: Simplify right side
127.23x = 23,601.50 - Step 5: Solve for x
x = 23,601.50/127.23 - Step 6: Final answer
x = 185.50
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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.