Finding the Fourth Proportional to 122.97, 184.20 and 79.68
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Solution
The fourth proportional to 122.97, 184.20 and 79.68 is: 119.35
Step by Step Solution
- Step 1: Write the proportion equation
122.97 : 184.20 = 79.68 : x - Step 2: Convert to fraction form
122.97/184.20 = 79.68/x - Step 3: Cross multiply
122.97x = 184.20 × 79.68 - Step 4: Simplify right side
122.97x = 14,677.06 - Step 5: Solve for x
x = 14,677.06/122.97 - Step 6: Final answer
x = 119.35
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.