Finding the Fourth Proportional to 126.99, 190.47 and 35.68
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Solution
The fourth proportional to 126.99, 190.47 and 35.68 is: 53.52
Step by Step Solution
- Step 1: Write the proportion equation
126.99 : 190.47 = 35.68 : x - Step 2: Convert to fraction form
126.99/190.47 = 35.68/x - Step 3: Cross multiply
126.99x = 190.47 × 35.68 - Step 4: Simplify right side
126.99x = 6,795.97 - Step 5: Solve for x
x = 6,795.97/126.99 - Step 6: Final answer
x = 53.52
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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.