Finding the Fourth Proportional to 141.84, 212.62 and 83.99
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Solution
The fourth proportional to 141.84, 212.62 and 83.99 is: 125.90
Step by Step Solution
- Step 1: Write the proportion equation
141.84 : 212.62 = 83.99 : x - Step 2: Convert to fraction form
141.84/212.62 = 83.99/x - Step 3: Cross multiply
141.84x = 212.62 × 83.99 - Step 4: Simplify right side
141.84x = 17,857.79 - Step 5: Solve for x
x = 17,857.79/141.84 - Step 6: Final answer
x = 125.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.