Finding the Fourth Proportional to 140,344.92, 193,676.67 and 76,683.78
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Solution
The fourth proportional to 140,344.92, 193,676.67 and 76,683.78 is: 105,823.99
Step by Step Solution
- Step 1: Write the proportion equation
140,344.92 : 193,676.67 = 76,683.78 : x - Step 2: Convert to fraction form
140,344.92/193,676.67 = 76,683.78/x - Step 3: Cross multiply
140,344.92x = 193,676.67 × 76,683.78 - Step 4: Simplify right side
140,344.92x = 14,851,859,153.41 - Step 5: Solve for x
x = 14,851,859,153.41/140,344.92 - Step 6: Final answer
x = 105,823.99
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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.