Finding the Fourth Proportional to 94.16, 140.94 and 74.82
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Solution
The fourth proportional to 94.16, 140.94 and 74.82 is: 111.99
Step by Step Solution
- Step 1: Write the proportion equation
94.16 : 140.94 = 74.82 : x - Step 2: Convert to fraction form
94.16/140.94 = 74.82/x - Step 3: Cross multiply
94.16x = 140.94 × 74.82 - Step 4: Simplify right side
94.16x = 10,545.66 - Step 5: Solve for x
x = 10,545.66/94.16 - Step 6: Final answer
x = 111.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.