Finding the Fourth Proportional to 126,764.08, 189,872.75 and 119,311.44
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Solution
The fourth proportional to 126,764.08, 189,872.75 and 119,311.44 is: 178,709.86
Step by Step Solution
- Step 1: Write the proportion equation
126,764.08 : 189,872.75 = 119,311.44 : x - Step 2: Convert to fraction form
126,764.08/189,872.75 = 119,311.44/x - Step 3: Cross multiply
126,764.08x = 189,872.75 × 119,311.44 - Step 4: Simplify right side
126,764.08x = 22,653,990,622.70 - Step 5: Solve for x
x = 22,653,990,622.70/126,764.08 - Step 6: Final answer
x = 178,709.86
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1.5x scale
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.