Finding the Fourth Proportional to 160,163.56, 220,995.30 and 100,520.68
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Solution
The fourth proportional to 160,163.56, 220,995.30 and 100,520.68 is: 138,699.45
Step by Step Solution
- Step 1: Write the proportion equation
160,163.56 : 220,995.30 = 100,520.68 : x - Step 2: Convert to fraction form
160,163.56/220,995.30 = 100,520.68/x - Step 3: Cross multiply
160,163.56x = 220,995.30 × 100,520.68 - Step 4: Simplify right side
160,163.56x = 22,214,597,832.80 - Step 5: Solve for x
x = 22,214,597,832.80/160,163.56 - Step 6: Final answer
x = 138,699.45
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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.