Finding the Fourth Proportional to 103,908.58, 155,806.97 and 53,864.62
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Solution
The fourth proportional to 103,908.58, 155,806.97 and 53,864.62 is: 80,767.95
Step by Step Solution
- Step 1: Write the proportion equation
103,908.58 : 155,806.97 = 53,864.62 : x - Step 2: Convert to fraction form
103,908.58/155,806.97 = 53,864.62/x - Step 3: Cross multiply
103,908.58x = 155,806.97 × 53,864.62 - Step 4: Simplify right side
103,908.58x = 8,392,482,453.37 - Step 5: Solve for x
x = 8,392,482,453.37/103,908.58 - Step 6: Final answer
x = 80,767.95
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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.