Finding the Fourth Proportional to 107,028.88, 147,660.20 and 69,323.92
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Solution
The fourth proportional to 107,028.88, 147,660.20 and 69,323.92 is: 95,641.32
Step by Step Solution
- Step 1: Write the proportion equation
107,028.88 : 147,660.20 = 69,323.92 : x - Step 2: Convert to fraction form
107,028.88/147,660.20 = 69,323.92/x - Step 3: Cross multiply
107,028.88x = 147,660.20 × 69,323.92 - Step 4: Simplify right side
107,028.88x = 10,236,383,891.98 - Step 5: Solve for x
x = 10,236,383,891.98/107,028.88 - Step 6: Final answer
x = 95,641.32
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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.