Finding the Fourth Proportional to 128,819.03, 193,249.17 and 40,093.02
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Solution
The fourth proportional to 128,819.03, 193,249.17 and 40,093.02 is: 60,145.95
Step by Step Solution
- Step 1: Write the proportion equation
128,819.03 : 193,249.17 = 40,093.02 : x - Step 2: Convert to fraction form
128,819.03/193,249.17 = 40,093.02/x - Step 3: Cross multiply
128,819.03x = 193,249.17 × 40,093.02 - Step 4: Simplify right side
128,819.03x = 7,747,942,837.79 - Step 5: Solve for x
x = 7,747,942,837.79/128,819.03 - Step 6: Final answer
x = 60,145.95
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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.