Finding the Fourth Proportional to 135,205.39, 202,930.60 and 72,078.45
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Solution
The fourth proportional to 135,205.39, 202,930.60 and 72,078.45 is: 108,182.99
Step by Step Solution
- Step 1: Write the proportion equation
135,205.39 : 202,930.60 = 72,078.45 : x - Step 2: Convert to fraction form
135,205.39/202,930.60 = 72,078.45/x - Step 3: Cross multiply
135,205.39x = 202,930.60 × 72,078.45 - Step 4: Simplify right side
135,205.39x = 14,626,923,105.57 - Step 5: Solve for x
x = 14,626,923,105.57/135,205.39 - Step 6: Final answer
x = 108,182.99
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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.