Finding the Fourth Proportional to 135.62, 187.07 and 88.92
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Solution
The fourth proportional to 135.62, 187.07 and 88.92 is: 122.65
Step by Step Solution
- Step 1: Write the proportion equation
135.62 : 187.07 = 88.92 : x - Step 2: Convert to fraction form
135.62/187.07 = 88.92/x - Step 3: Cross multiply
135.62x = 187.07 × 88.92 - Step 4: Simplify right side
135.62x = 16,634.26 - Step 5: Solve for x
x = 16,634.26/135.62 - Step 6: Final answer
x = 122.65
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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.