Finding the Fourth Proportional to 113,147.66, 169,721.48 and 28,907.99
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Solution
The fourth proportional to 113,147.66, 169,721.48 and 28,907.99 is: 43,361.98
Step by Step Solution
- Step 1: Write the proportion equation
113,147.66 : 169,721.48 = 28,907.99 : x - Step 2: Convert to fraction form
113,147.66/169,721.48 = 28,907.99/x - Step 3: Cross multiply
113,147.66x = 169,721.48 × 28,907.99 - Step 4: Simplify right side
113,147.66x = 4,906,306,544.14 - Step 5: Solve for x
x = 4,906,306,544.14/113,147.66 - Step 6: Final answer
x = 43,361.98
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1.5x scale
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.