Finding the Fourth Proportional to 129.83, 178.97 and 107.44
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Solution
The fourth proportional to 129.83, 178.97 and 107.44 is: 148.09
Step by Step Solution
- Step 1: Write the proportion equation
129.83 : 178.97 = 107.44 : x - Step 2: Convert to fraction form
129.83/178.97 = 107.44/x - Step 3: Cross multiply
129.83x = 178.97 × 107.44 - Step 4: Simplify right side
129.83x = 19,227.10 - Step 5: Solve for x
x = 19,227.10/129.83 - Step 6: Final answer
x = 148.09
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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.