Finding the Fourth Proportional to 115,474.20, 173,211.30 and 102,571.80
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Solution
The fourth proportional to 115,474.20, 173,211.30 and 102,571.80 is: 153,857.70
Step by Step Solution
- Step 1: Write the proportion equation
115,474.20 : 173,211.30 = 102,571.80 : x - Step 2: Convert to fraction form
115,474.20/173,211.30 = 102,571.80/x - Step 3: Cross multiply
115,474.20x = 173,211.30 × 102,571.80 - Step 4: Simplify right side
115,474.20x = 17,766,594,821.34 - Step 5: Solve for x
x = 17,766,594,821.34/115,474.20 - Step 6: Final answer
x = 153,857.70
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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.