Finding the Fourth Proportional to 122.88, 184.28 and 61.99
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Solution
The fourth proportional to 122.88, 184.28 and 61.99 is: 92.97
Step by Step Solution
- Step 1: Write the proportion equation
122.88 : 184.28 = 61.99 : x - Step 2: Convert to fraction form
122.88/184.28 = 61.99/x - Step 3: Cross multiply
122.88x = 184.28 × 61.99 - Step 4: Simplify right side
122.88x = 11,423.26 - Step 5: Solve for x
x = 11,423.26/122.88 - Step 6: Final answer
x = 92.97
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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.