Finding the Fourth Proportional to 142,163.12, 213,244.92 and 48,669.68
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Solution
The fourth proportional to 142,163.12, 213,244.92 and 48,669.68 is: 73,004.60
Step by Step Solution
- Step 1: Write the proportion equation
142,163.12 : 213,244.92 = 48,669.68 : x - Step 2: Convert to fraction form
142,163.12/213,244.92 = 48,669.68/x - Step 3: Cross multiply
142,163.12x = 213,244.92 × 48,669.68 - Step 4: Simplify right side
142,163.12x = 10,378,562,018.03 - Step 5: Solve for x
x = 10,378,562,018.03/142,163.12 - Step 6: Final answer
x = 73,004.60
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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.