Finding the Fourth Proportional to 122.77, 184.08 and 84.26
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Solution
The fourth proportional to 122.77, 184.08 and 84.26 is: 126.34
Step by Step Solution
- Step 1: Write the proportion equation
122.77 : 184.08 = 84.26 : x - Step 2: Convert to fraction form
122.77/184.08 = 84.26/x - Step 3: Cross multiply
122.77x = 184.08 × 84.26 - Step 4: Simplify right side
122.77x = 15,509.66 - Step 5: Solve for x
x = 15,509.66/122.77 - Step 6: Final answer
x = 126.34
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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.