Finding the Fourth Proportional to 128,512.50, 192,780.90 and 44,269.26
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Solution
The fourth proportional to 128,512.50, 192,780.90 and 44,269.26 is: 66,408.08
Step by Step Solution
- Step 1: Write the proportion equation
128,512.50 : 192,780.90 = 44,269.26 : x - Step 2: Convert to fraction form
128,512.50/192,780.90 = 44,269.26/x - Step 3: Cross multiply
128,512.50x = 192,780.90 × 44,269.26 - Step 4: Simplify right side
128,512.50x = 8,534,267,785.13 - Step 5: Solve for x
x = 8,534,267,785.13/128,512.50 - Step 6: Final answer
x = 66,408.08
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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.