Finding the Fourth Proportional to 134,845.70, 202,205.97 and 78,701.96
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Solution
The fourth proportional to 134,845.70, 202,205.97 and 78,701.96 is: 118,016.42
Step by Step Solution
- Step 1: Write the proportion equation
134,845.70 : 202,205.97 = 78,701.96 : x - Step 2: Convert to fraction form
134,845.70/202,205.97 = 78,701.96/x - Step 3: Cross multiply
134,845.70x = 202,205.97 × 78,701.96 - Step 4: Simplify right side
134,845.70x = 15,914,006,668.22 - Step 5: Solve for x
x = 15,914,006,668.22/134,845.70 - Step 6: Final answer
x = 118,016.42
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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.