Finding the Fourth Proportional to 150,578.87, 207,816.21 and 90,149.49
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Solution
The fourth proportional to 150,578.87, 207,816.21 and 90,149.49 is: 124,416.70
Step by Step Solution
- Step 1: Write the proportion equation
150,578.87 : 207,816.21 = 90,149.49 : x - Step 2: Convert to fraction form
150,578.87/207,816.21 = 90,149.49/x - Step 3: Cross multiply
150,578.87x = 207,816.21 × 90,149.49 - Step 4: Simplify right side
150,578.87x = 18,734,525,345.23 - Step 5: Solve for x
x = 18,734,525,345.23/150,578.87 - Step 6: Final answer
x = 124,416.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.