Finding the Fourth Proportional to 122.63, 183.96 and 102.48
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Solution
The fourth proportional to 122.63, 183.96 and 102.48 is: 153.74
Step by Step Solution
- Step 1: Write the proportion equation
122.63 : 183.96 = 102.48 : x - Step 2: Convert to fraction form
122.63/183.96 = 102.48/x - Step 3: Cross multiply
122.63x = 183.96 × 102.48 - Step 4: Simplify right side
122.63x = 18,852.22 - Step 5: Solve for x
x = 18,852.22/122.63 - Step 6: Final answer
x = 153.74
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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.