Finding the Fourth Proportional to 146.34, 201.99 and 91.08
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Solution
The fourth proportional to 146.34, 201.99 and 91.08 is: 125.72
Step by Step Solution
- Step 1: Write the proportion equation
146.34 : 201.99 = 91.08 : x - Step 2: Convert to fraction form
146.34/201.99 = 91.08/x - Step 3: Cross multiply
146.34x = 201.99 × 91.08 - Step 4: Simplify right side
146.34x = 18,397.25 - Step 5: Solve for x
x = 18,397.25/146.34 - Step 6: Final answer
x = 125.72
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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.