Finding the Fourth Proportional to 134.87, 201.99 and 77.00
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Solution
The fourth proportional to 134.87, 201.99 and 77.00 is: 115.33
Step by Step Solution
- Step 1: Write the proportion equation
134.87 : 201.99 = 77.00 : x - Step 2: Convert to fraction form
134.87/201.99 = 77.00/x - Step 3: Cross multiply
134.87x = 201.99 × 77.00 - Step 4: Simplify right side
134.87x = 15,553.64 - Step 5: Solve for x
x = 15,553.64/134.87 - Step 6: Final answer
x = 115.33
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.