Finding the Fourth Proportional to 140.26, 193.65 and 107.68
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Solution
The fourth proportional to 140.26, 193.65 and 107.68 is: 148.67
Step by Step Solution
- Step 1: Write the proportion equation
140.26 : 193.65 = 107.68 : x - Step 2: Convert to fraction form
140.26/193.65 = 107.68/x - Step 3: Cross multiply
140.26x = 193.65 × 107.68 - Step 4: Simplify right side
140.26x = 20,852.23 - Step 5: Solve for x
x = 20,852.23/140.26 - Step 6: Final answer
x = 148.67
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.