Finding the Fourth Proportional to 116.38, 160.61 and 67.26
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Solution
The fourth proportional to 116.38, 160.61 and 67.26 is: 92.82
Step by Step Solution
- Step 1: Write the proportion equation
116.38 : 160.61 = 67.26 : x - Step 2: Convert to fraction form
116.38/160.61 = 67.26/x - Step 3: Cross multiply
116.38x = 160.61 × 67.26 - Step 4: Simplify right side
116.38x = 10,803.13 - Step 5: Solve for x
x = 10,803.13/116.38 - Step 6: Final answer
x = 92.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.