Finding the Fourth Proportional to 106,821.60, 160,183.80 and 47,626.80
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Solution
The fourth proportional to 106,821.60, 160,183.80 and 47,626.80 is: 71,418.53
Step by Step Solution
- Step 1: Write the proportion equation
106,821.60 : 160,183.80 = 47,626.80 : x - Step 2: Convert to fraction form
106,821.60/160,183.80 = 47,626.80/x - Step 3: Cross multiply
106,821.60x = 160,183.80 × 47,626.80 - Step 4: Simplify right side
106,821.60x = 7,629,041,805.84 - Step 5: Solve for x
x = 7,629,041,805.84/106,821.60 - Step 6: Final answer
x = 71,418.53
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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.