Finding the Fourth Proportional to 128,353.86, 192,489.84 and 44,093.70
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Solution
The fourth proportional to 128,353.86, 192,489.84 and 44,093.70 is: 66,126.48
Step by Step Solution
- Step 1: Write the proportion equation
128,353.86 : 192,489.84 = 44,093.70 : x - Step 2: Convert to fraction form
128,353.86/192,489.84 = 44,093.70/x - Step 3: Cross multiply
128,353.86x = 192,489.84 × 44,093.70 - Step 4: Simplify right side
128,353.86x = 8,487,589,258.01 - Step 5: Solve for x
x = 8,487,589,258.01/128,353.86 - Step 6: Final answer
x = 66,126.48
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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.