Finding the Fourth Proportional to 107.44, 161.07 and 91.99
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Solution
The fourth proportional to 107.44, 161.07 and 91.99 is: 137.91
Step by Step Solution
- Step 1: Write the proportion equation
107.44 : 161.07 = 91.99 : x - Step 2: Convert to fraction form
107.44/161.07 = 91.99/x - Step 3: Cross multiply
107.44x = 161.07 × 91.99 - Step 4: Simplify right side
107.44x = 14,816.83 - Step 5: Solve for x
x = 14,816.83/107.44 - Step 6: Final answer
x = 137.91
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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.