Finding the Fourth Proportional to 122.85, 184.07 and 64.99
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Solution
The fourth proportional to 122.85, 184.07 and 64.99 is: 97.38
Step by Step Solution
- Step 1: Write the proportion equation
122.85 : 184.07 = 64.99 : x - Step 2: Convert to fraction form
122.85/184.07 = 64.99/x - Step 3: Cross multiply
122.85x = 184.07 × 64.99 - Step 4: Simplify right side
122.85x = 11,962.71 - Step 5: Solve for x
x = 11,962.71/122.85 - Step 6: Final answer
x = 97.38
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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.