Finding the Fourth Proportional to 122.58, 184.91 and 119.70
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Solution
The fourth proportional to 122.58, 184.91 and 119.70 is: 180.56
Step by Step Solution
- Step 1: Write the proportion equation
122.58 : 184.91 = 119.70 : x - Step 2: Convert to fraction form
122.58/184.91 = 119.70/x - Step 3: Cross multiply
122.58x = 184.91 × 119.70 - Step 4: Simplify right side
122.58x = 22,133.13 - Step 5: Solve for x
x = 22,133.13/122.58 - Step 6: Final answer
x = 180.56
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.