Finding the Fourth Proportional to 126,132.58, 189,198.87 and 47,225.62
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Solution
The fourth proportional to 126,132.58, 189,198.87 and 47,225.62 is: 70,838.43
Step by Step Solution
- Step 1: Write the proportion equation
126,132.58 : 189,198.87 = 47,225.62 : x - Step 2: Convert to fraction form
126,132.58/189,198.87 = 47,225.62/x - Step 3: Cross multiply
126,132.58x = 189,198.87 × 47,225.62 - Step 4: Simplify right side
126,132.58x = 8,935,033,939.05 - Step 5: Solve for x
x = 8,935,033,939.05/126,132.58 - Step 6: Final answer
x = 70,838.43
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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.