Finding the Fourth Proportional to 141,200.20, 194,869.74 and 80,758.99
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Solution
The fourth proportional to 141,200.20, 194,869.74 and 80,758.99 is: 111,455.11
Step by Step Solution
- Step 1: Write the proportion equation
141,200.20 : 194,869.74 = 80,758.99 : x - Step 2: Convert to fraction form
141,200.20/194,869.74 = 80,758.99/x - Step 3: Cross multiply
141,200.20x = 194,869.74 × 80,758.99 - Step 4: Simplify right side
141,200.20x = 15,737,483,383.96 - Step 5: Solve for x
x = 15,737,483,383.96/141,200.20 - Step 6: Final answer
x = 111,455.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.