Finding the Fourth Proportional to 126.99, 190.08 and 110.79
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Solution
The fourth proportional to 126.99, 190.08 and 110.79 is: 165.83
Step by Step Solution
- Step 1: Write the proportion equation
126.99 : 190.08 = 110.79 : x - Step 2: Convert to fraction form
126.99/190.08 = 110.79/x - Step 3: Cross multiply
126.99x = 190.08 × 110.79 - Step 4: Simplify right side
126.99x = 21,058.96 - Step 5: Solve for x
x = 21,058.96/126.99 - Step 6: Final answer
x = 165.83
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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.