Finding the Fourth Proportional to 111.83, 167.81 and 50.99
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Solution
The fourth proportional to 111.83, 167.81 and 50.99 is: 76.51
Step by Step Solution
- Step 1: Write the proportion equation
111.83 : 167.81 = 50.99 : x - Step 2: Convert to fraction form
111.83/167.81 = 50.99/x - Step 3: Cross multiply
111.83x = 167.81 × 50.99 - Step 4: Simplify right side
111.83x = 8,555.54 - Step 5: Solve for x
x = 8,555.54/111.83 - Step 6: Final answer
x = 76.51
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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.