Finding the Fourth Proportional to 110,821.80, 166,232.70 and 98,137.20
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Solution
The fourth proportional to 110,821.80, 166,232.70 and 98,137.20 is: 147,205.80
Step by Step Solution
- Step 1: Write the proportion equation
110,821.80 : 166,232.70 = 98,137.20 : x - Step 2: Convert to fraction form
110,821.80/166,232.70 = 98,137.20/x - Step 3: Cross multiply
110,821.80x = 166,232.70 × 98,137.20 - Step 4: Simplify right side
110,821.80x = 16,313,611,726.44 - Step 5: Solve for x
x = 16,313,611,726.44/110,821.80 - Step 6: Final answer
x = 147,205.80
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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.