Finding the Fourth Proportional to 140,193.92, 193,467.49 and 76,531.70
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Solution
The fourth proportional to 140,193.92, 193,467.49 and 76,531.70 is: 105,613.68
Step by Step Solution
- Step 1: Write the proportion equation
140,193.92 : 193,467.49 = 76,531.70 : x - Step 2: Convert to fraction form
140,193.92/193,467.49 = 76,531.70/x - Step 3: Cross multiply
140,193.92x = 193,467.49 × 76,531.70 - Step 4: Simplify right side
140,193.92x = 14,806,396,196.77 - Step 5: Solve for x
x = 14,806,396,196.77/140,193.92 - Step 6: Final answer
x = 105,613.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.