Finding the Fourth Proportional to 115,535.20, 173,302.80 and 92,207.20
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Solution
The fourth proportional to 115,535.20, 173,302.80 and 92,207.20 is: 138,310.80
Step by Step Solution
- Step 1: Write the proportion equation
115,535.20 : 173,302.80 = 92,207.20 : x - Step 2: Convert to fraction form
115,535.20/173,302.80 = 92,207.20/x - Step 3: Cross multiply
115,535.20x = 173,302.80 × 92,207.20 - Step 4: Simplify right side
115,535.20x = 15,979,765,940.16 - Step 5: Solve for x
x = 15,979,765,940.16/115,535.20 - Step 6: Final answer
x = 138,310.80
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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.