Finding the Fourth Proportional to 192,647.28, 289,120.68 and 126,068.88
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Solution
The fourth proportional to 192,647.28, 289,120.68 and 126,068.88 is: 189,201.32
Step by Step Solution
- Step 1: Write the proportion equation
192,647.28 : 289,120.68 = 126,068.88 : x - Step 2: Convert to fraction form
192,647.28/289,120.68 = 126,068.88/x - Step 3: Cross multiply
192,647.28x = 289,120.68 × 126,068.88 - Step 4: Simplify right side
192,647.28x = 36,449,120,312.44 - Step 5: Solve for x
x = 36,449,120,312.44/192,647.28 - Step 6: Final answer
x = 189,201.32
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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.