Finding the Fourth Proportional to 122.74, 184.18 and 64.99
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Solution
The fourth proportional to 122.74, 184.18 and 64.99 is: 97.52
Step by Step Solution
- Step 1: Write the proportion equation
122.74 : 184.18 = 64.99 : x - Step 2: Convert to fraction form
122.74/184.18 = 64.99/x - Step 3: Cross multiply
122.74x = 184.18 × 64.99 - Step 4: Simplify right side
122.74x = 11,969.86 - Step 5: Solve for x
x = 11,969.86/122.74 - Step 6: Final answer
x = 97.52
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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.