Finding the Fourth Proportional to 100,138.68, 150,568.20 and 92,336.58
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Solution
The fourth proportional to 100,138.68, 150,568.20 and 92,336.58 is: 138,836.99
Step by Step Solution
- Step 1: Write the proportion equation
100,138.68 : 150,568.20 = 92,336.58 : x - Step 2: Convert to fraction form
100,138.68/150,568.20 = 92,336.58/x - Step 3: Cross multiply
100,138.68x = 150,568.20 × 92,336.58 - Step 4: Simplify right side
100,138.68x = 13,902,952,644.76 - Step 5: Solve for x
x = 13,902,952,644.76/100,138.68 - Step 6: Final answer
x = 138,836.99
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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.