Finding the Fourth Proportional to 115,161.97, 158,850.79 and 79,289.68
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Solution
The fourth proportional to 115,161.97, 158,850.79 and 79,289.68 is: 109,369.68
Step by Step Solution
- Step 1: Write the proportion equation
115,161.97 : 158,850.79 = 79,289.68 : x - Step 2: Convert to fraction form
115,161.97/158,850.79 = 79,289.68/x - Step 3: Cross multiply
115,161.97x = 158,850.79 × 79,289.68 - Step 4: Simplify right side
115,161.97x = 12,595,228,306.85 - Step 5: Solve for x
x = 12,595,228,306.85/115,161.97 - Step 6: Final answer
x = 109,369.68
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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.