Finding the Fourth Proportional to 169.62, 234.08 and 91.99
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Solution
The fourth proportional to 169.62, 234.08 and 91.99 is: 126.95
Step by Step Solution
- Step 1: Write the proportion equation
169.62 : 234.08 = 91.99 : x - Step 2: Convert to fraction form
169.62/234.08 = 91.99/x - Step 3: Cross multiply
169.62x = 234.08 × 91.99 - Step 4: Simplify right side
169.62x = 21,533.14 - Step 5: Solve for x
x = 21,533.14/169.62 - Step 6: Final answer
x = 126.95
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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.