Finding the Fourth Proportional to 135.26, 186.60 and 93.74
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Solution
The fourth proportional to 135.26, 186.60 and 93.74 is: 129.32
Step by Step Solution
- Step 1: Write the proportion equation
135.26 : 186.60 = 93.74 : x - Step 2: Convert to fraction form
135.26/186.60 = 93.74/x - Step 3: Cross multiply
135.26x = 186.60 × 93.74 - Step 4: Simplify right side
135.26x = 17,490.95 - Step 5: Solve for x
x = 17,490.95/135.26 - Step 6: Final answer
x = 129.32
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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.