Finding the Fourth Proportional to 161.63, 242.33 and 68.99
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Solution
The fourth proportional to 161.63, 242.33 and 68.99 is: 103.43
Step by Step Solution
- Step 1: Write the proportion equation
161.63 : 242.33 = 68.99 : x - Step 2: Convert to fraction form
161.63/242.33 = 68.99/x - Step 3: Cross multiply
161.63x = 242.33 × 68.99 - Step 4: Simplify right side
161.63x = 16,716.79 - Step 5: Solve for x
x = 16,716.79/161.63 - Step 6: Final answer
x = 103.43
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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.