Finding the Fourth Proportional to 159.75, 239.49 and 113.99
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Solution
The fourth proportional to 159.75, 239.49 and 113.99 is: 170.88
Step by Step Solution
- Step 1: Write the proportion equation
159.75 : 239.49 = 113.99 : x - Step 2: Convert to fraction form
159.75/239.49 = 113.99/x - Step 3: Cross multiply
159.75x = 239.49 × 113.99 - Step 4: Simplify right side
159.75x = 27,298.27 - Step 5: Solve for x
x = 27,298.27/159.75 - Step 6: Final answer
x = 170.88
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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.