Finding the Fourth Proportional to 136.84, 188.99 and 122.26
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Solution
The fourth proportional to 136.84, 188.99 and 122.26 is: 168.85
Step by Step Solution
- Step 1: Write the proportion equation
136.84 : 188.99 = 122.26 : x - Step 2: Convert to fraction form
136.84/188.99 = 122.26/x - Step 3: Cross multiply
136.84x = 188.99 × 122.26 - Step 4: Simplify right side
136.84x = 23,105.92 - Step 5: Solve for x
x = 23,105.92/136.84 - Step 6: Final answer
x = 168.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.