Finding the Fourth Proportional to 128,773.28, 193,112.60 and 44,511.84
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Solution
The fourth proportional to 128,773.28, 193,112.60 and 44,511.84 is: 66,751.40
Step by Step Solution
- Step 1: Write the proportion equation
128,773.28 : 193,112.60 = 44,511.84 : x - Step 2: Convert to fraction form
128,773.28/193,112.60 = 44,511.84/x - Step 3: Cross multiply
128,773.28x = 193,112.60 × 44,511.84 - Step 4: Simplify right side
128,773.28x = 8,595,797,153.18 - Step 5: Solve for x
x = 8,595,797,153.18/128,773.28 - Step 6: Final answer
x = 66,751.40
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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.