Finding the Fourth Proportional to 111,872.06, 154,348.63 and 63,465.99
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Solution
The fourth proportional to 111,872.06, 154,348.63 and 63,465.99 is: 87,563.32
Step by Step Solution
- Step 1: Write the proportion equation
111,872.06 : 154,348.63 = 63,465.99 : x - Step 2: Convert to fraction form
111,872.06/154,348.63 = 63,465.99/x - Step 3: Cross multiply
111,872.06x = 154,348.63 × 63,465.99 - Step 4: Simplify right side
111,872.06x = 9,795,888,608.09 - Step 5: Solve for x
x = 9,795,888,608.09/111,872.06 - Step 6: Final answer
x = 87,563.32
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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.