Finding the Fourth Proportional to 157,863.20, 217,855.49 and 94,237.92
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Solution
The fourth proportional to 157,863.20, 217,855.49 and 94,237.92 is: 130,050.88
Step by Step Solution
- Step 1: Write the proportion equation
157,863.20 : 217,855.49 = 94,237.92 : x - Step 2: Convert to fraction form
157,863.20/217,855.49 = 94,237.92/x - Step 3: Cross multiply
157,863.20x = 217,855.49 × 94,237.92 - Step 4: Simplify right side
157,863.20x = 20,530,247,766.99 - Step 5: Solve for x
x = 20,530,247,766.99/157,863.20 - Step 6: Final answer
x = 130,050.88
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1.5x scale
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.