Finding the Fourth Proportional to 128,771.94, 193,149.45 and 44,512.50
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Solution
The fourth proportional to 128,771.94, 193,149.45 and 44,512.50 is: 66,765.83
Step by Step Solution
- Step 1: Write the proportion equation
128,771.94 : 193,149.45 = 44,512.50 : x - Step 2: Convert to fraction form
128,771.94/193,149.45 = 44,512.50/x - Step 3: Cross multiply
128,771.94x = 193,149.45 × 44,512.50 - Step 4: Simplify right side
128,771.94x = 8,597,564,893.13 - Step 5: Solve for x
x = 8,597,564,893.13/128,771.94 - Step 6: Final answer
x = 66,765.83
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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.