Finding the Fourth Proportional to 115,851.12, 173,790.36 and 36,937.68
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Solution
The fourth proportional to 115,851.12, 173,790.36 and 36,937.68 is: 55,410.88
Step by Step Solution
- Step 1: Write the proportion equation
115,851.12 : 173,790.36 = 36,937.68 : x - Step 2: Convert to fraction form
115,851.12/173,790.36 = 36,937.68/x - Step 3: Cross multiply
115,851.12x = 173,790.36 × 36,937.68 - Step 4: Simplify right side
115,851.12x = 6,419,412,704.76 - Step 5: Solve for x
x = 6,419,412,704.76/115,851.12 - Step 6: Final answer
x = 55,410.88
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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.