Finding the Fourth Proportional to 128,793.60, 193,190.40 and 122,232.60
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Solution
The fourth proportional to 128,793.60, 193,190.40 and 122,232.60 is: 183,348.90
Step by Step Solution
- Step 1: Write the proportion equation
128,793.60 : 193,190.40 = 122,232.60 : x - Step 2: Convert to fraction form
128,793.60/193,190.40 = 122,232.60/x - Step 3: Cross multiply
128,793.60x = 193,190.40 × 122,232.60 - Step 4: Simplify right side
128,793.60x = 23,614,164,887.04 - Step 5: Solve for x
x = 23,614,164,887.04/128,793.60 - Step 6: Final answer
x = 183,348.90
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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.