Finding the Fourth Proportional to 126,764.62, 189,873.54 and 119,311.99
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Solution
The fourth proportional to 126,764.62, 189,873.54 and 119,311.99 is: 178,710.67
Step by Step Solution
- Step 1: Write the proportion equation
126,764.62 : 189,873.54 = 119,311.99 : x - Step 2: Convert to fraction form
126,764.62/189,873.54 = 119,311.99/x - Step 3: Cross multiply
126,764.62x = 189,873.54 × 119,311.99 - Step 4: Simplify right side
126,764.62x = 22,654,189,766.63 - Step 5: Solve for x
x = 22,654,189,766.63/126,764.62 - Step 6: Final answer
x = 178,710.67
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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.