Finding the Fourth Proportional to 114.14, 170.94 and 68.44
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Solution
The fourth proportional to 114.14, 170.94 and 68.44 is: 102.50
Step by Step Solution
- Step 1: Write the proportion equation
114.14 : 170.94 = 68.44 : x - Step 2: Convert to fraction form
114.14/170.94 = 68.44/x - Step 3: Cross multiply
114.14x = 170.94 × 68.44 - Step 4: Simplify right side
114.14x = 11,699.13 - Step 5: Solve for x
x = 11,699.13/114.14 - Step 6: Final answer
x = 102.50
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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.