Finding the Fourth Proportional to 121.74, 182.68 and 63.99
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Solution
The fourth proportional to 121.74, 182.68 and 63.99 is: 96.02
Step by Step Solution
- Step 1: Write the proportion equation
121.74 : 182.68 = 63.99 : x - Step 2: Convert to fraction form
121.74/182.68 = 63.99/x - Step 3: Cross multiply
121.74x = 182.68 × 63.99 - Step 4: Simplify right side
121.74x = 11,689.53 - Step 5: Solve for x
x = 11,689.53/121.74 - Step 6: Final answer
x = 96.02
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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.