Finding the Fourth Proportional to 126,320.58, 189,595.62 and 67,205.70
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Solution
The fourth proportional to 126,320.58, 189,595.62 and 67,205.70 is: 100,869.60
Step by Step Solution
- Step 1: Write the proportion equation
126,320.58 : 189,595.62 = 67,205.70 : x - Step 2: Convert to fraction form
126,320.58/189,595.62 = 67,205.70/x - Step 3: Cross multiply
126,320.58x = 189,595.62 × 67,205.70 - Step 4: Simplify right side
126,320.58x = 12,741,906,359.03 - Step 5: Solve for x
x = 12,741,906,359.03/126,320.58 - Step 6: Final answer
x = 100,869.60
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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.