Finding the Fourth Proportional to 135.28, 186.08 and 124.08
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Solution
The fourth proportional to 135.28, 186.08 and 124.08 is: 170.67
Step by Step Solution
- Step 1: Write the proportion equation
135.28 : 186.08 = 124.08 : x - Step 2: Convert to fraction form
135.28/186.08 = 124.08/x - Step 3: Cross multiply
135.28x = 186.08 × 124.08 - Step 4: Simplify right side
135.28x = 23,088.81 - Step 5: Solve for x
x = 23,088.81/135.28 - Step 6: Final answer
x = 170.67
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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.