Finding the Fourth Proportional to 106,815.10, 160,237.05 and 36,715.90
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Solution
The fourth proportional to 106,815.10, 160,237.05 and 36,715.90 is: 55,078.80
Step by Step Solution
- Step 1: Write the proportion equation
106,815.10 : 160,237.05 = 36,715.90 : x - Step 2: Convert to fraction form
106,815.10/160,237.05 = 36,715.90/x - Step 3: Cross multiply
106,815.10x = 160,237.05 × 36,715.90 - Step 4: Simplify right side
106,815.10x = 5,883,247,504.10 - Step 5: Solve for x
x = 5,883,247,504.10/106,815.10 - Step 6: Final answer
x = 55,078.80
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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.