Finding the Fourth Proportional to 128,372.60, 192,511.74 and 44,108.85
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Solution
The fourth proportional to 128,372.60, 192,511.74 and 44,108.85 is: 66,147.08
Step by Step Solution
- Step 1: Write the proportion equation
128,372.60 : 192,511.74 = 44,108.85 : x - Step 2: Convert to fraction form
128,372.60/192,511.74 = 44,108.85/x - Step 3: Cross multiply
128,372.60x = 192,511.74 × 44,108.85 - Step 4: Simplify right side
128,372.60x = 8,491,472,102.11 - Step 5: Solve for x
x = 8,491,472,102.11/128,372.60 - Step 6: Final answer
x = 66,147.08
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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.