Finding the Fourth Proportional to 122.46, 183.99 and 116.70
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Solution
The fourth proportional to 122.46, 183.99 and 116.70 is: 175.34
Step by Step Solution
- Step 1: Write the proportion equation
122.46 : 183.99 = 116.70 : x - Step 2: Convert to fraction form
122.46/183.99 = 116.70/x - Step 3: Cross multiply
122.46x = 183.99 × 116.70 - Step 4: Simplify right side
122.46x = 21,471.63 - Step 5: Solve for x
x = 21,471.63/122.46 - Step 6: Final answer
x = 175.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.