Finding the Fourth Proportional to 150,115.20, 207,157.44 and 83,047.68
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Solution
The fourth proportional to 150,115.20, 207,157.44 and 83,047.68 is: 114,604.95
Step by Step Solution
- Step 1: Write the proportion equation
150,115.20 : 207,157.44 = 83,047.68 : x - Step 2: Convert to fraction form
150,115.20/207,157.44 = 83,047.68/x - Step 3: Cross multiply
150,115.20x = 207,157.44 × 83,047.68 - Step 4: Simplify right side
150,115.20x = 17,203,944,786.74 - Step 5: Solve for x
x = 17,203,944,786.74/150,115.20 - Step 6: Final answer
x = 114,604.95
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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.