Finding the Fourth Proportional to 126,326.58, 189,604.62 and 67,211.70
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Solution
The fourth proportional to 126,326.58, 189,604.62 and 67,211.70 is: 100,878.60
Step by Step Solution
- Step 1: Write the proportion equation
126,326.58 : 189,604.62 = 67,211.70 : x - Step 2: Convert to fraction form
126,326.58/189,604.62 = 67,211.70/x - Step 3: Cross multiply
126,326.58x = 189,604.62 × 67,211.70 - Step 4: Simplify right side
126,326.58x = 12,743,648,838.05 - Step 5: Solve for x
x = 12,743,648,838.05/126,326.58 - Step 6: Final answer
x = 100,878.60
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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.