Finding the Fourth Proportional to 97.75, 134.96 and 68.68
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Solution
The fourth proportional to 97.75, 134.96 and 68.68 is: 94.82
Step by Step Solution
- Step 1: Write the proportion equation
97.75 : 134.96 = 68.68 : x - Step 2: Convert to fraction form
97.75/134.96 = 68.68/x - Step 3: Cross multiply
97.75x = 134.96 × 68.68 - Step 4: Simplify right side
97.75x = 9,269.05 - Step 5: Solve for x
x = 9,269.05/97.75 - Step 6: Final answer
x = 94.82
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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.