Finding the Fourth Proportional to 122, 182.99 and 104.99
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Solution
The fourth proportional to 122, 182.99 and 104.99 is: 157.48
Step by Step Solution
- Step 1: Write the proportion equation
122 : 182.99 = 104.99 : x - Step 2: Convert to fraction form
122/182.99 = 104.99/x - Step 3: Cross multiply
122x = 182.99 × 104.99 - Step 4: Simplify right side
122x = 19,212.12 - Step 5: Solve for x
x = 19,212.12/122 - Step 6: Final answer
x = 157.48
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Double scale
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Similar ratio
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1.5x scale
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.