Finding the Fourth Proportional to 122.52, 183.79 and 61.63
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Solution
The fourth proportional to 122.52, 183.79 and 61.63 is: 92.45
Step by Step Solution
- Step 1: Write the proportion equation
122.52 : 183.79 = 61.63 : x - Step 2: Convert to fraction form
122.52/183.79 = 61.63/x - Step 3: Cross multiply
122.52x = 183.79 × 61.63 - Step 4: Simplify right side
122.52x = 11,326.98 - Step 5: Solve for x
x = 11,326.98/122.52 - Step 6: Final answer
x = 92.45
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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.