Finding the Fourth Proportional to 100,069.10, 150,121.84 and 47,478.09
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Solution
The fourth proportional to 100,069.10, 150,121.84 and 47,478.09 is: 71,225.77
Step by Step Solution
- Step 1: Write the proportion equation
100,069.10 : 150,121.84 = 47,478.09 : x - Step 2: Convert to fraction form
100,069.10/150,121.84 = 47,478.09/x - Step 3: Cross multiply
100,069.10x = 150,121.84 × 47,478.09 - Step 4: Simplify right side
100,069.10x = 7,127,498,230.49 - Step 5: Solve for x
x = 7,127,498,230.49/100,069.10 - Step 6: Final answer
x = 71,225.77
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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.