Finding the Fourth Proportional to 150,205.75, 207,287.18 and 83,137.75
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Solution
The fourth proportional to 150,205.75, 207,287.18 and 83,137.75 is: 114,731.89
Step by Step Solution
- Step 1: Write the proportion equation
150,205.75 : 207,287.18 = 83,137.75 : x - Step 2: Convert to fraction form
150,205.75/207,287.18 = 83,137.75/x - Step 3: Cross multiply
150,205.75x = 207,287.18 × 83,137.75 - Step 4: Simplify right side
150,205.75x = 17,233,389,749.05 - Step 5: Solve for x
x = 17,233,389,749.05/150,205.75 - Step 6: Final answer
x = 114,731.89
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1.5x scale
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.