Finding the Fourth Proportional to 106,808.70, 160,213.05 and 27,930.90
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Solution
The fourth proportional to 106,808.70, 160,213.05 and 27,930.90 is: 41,896.35
Step by Step Solution
- Step 1: Write the proportion equation
106,808.70 : 160,213.05 = 27,930.90 : x - Step 2: Convert to fraction form
106,808.70/160,213.05 = 27,930.90/x - Step 3: Cross multiply
106,808.70x = 160,213.05 × 27,930.90 - Step 4: Simplify right side
106,808.70x = 4,474,894,678.25 - Step 5: Solve for x
x = 4,474,894,678.25/106,808.70 - Step 6: Final answer
x = 41,896.35
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1.5x scale
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.