Finding the Fourth Proportional to 145.79, 201.19 and 134.75
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Solution
The fourth proportional to 145.79, 201.19 and 134.75 is: 185.96
Step by Step Solution
- Step 1: Write the proportion equation
145.79 : 201.19 = 134.75 : x - Step 2: Convert to fraction form
145.79/201.19 = 134.75/x - Step 3: Cross multiply
145.79x = 201.19 × 134.75 - Step 4: Simplify right side
145.79x = 27,110.52 - Step 5: Solve for x
x = 27,110.52/145.79 - Step 6: Final answer
x = 185.96
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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.