Finding the Fourth Proportional to 70,755.12, 106,133.76 and 18,163.44
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Solution
The fourth proportional to 70,755.12, 106,133.76 and 18,163.44 is: 27,245.44
Step by Step Solution
- Step 1: Write the proportion equation
70,755.12 : 106,133.76 = 18,163.44 : x - Step 2: Convert to fraction form
70,755.12/106,133.76 = 18,163.44/x - Step 3: Cross multiply
70,755.12x = 106,133.76 × 18,163.44 - Step 4: Simplify right side
70,755.12x = 1,927,754,181.73 - Step 5: Solve for x
x = 1,927,754,181.73/70,755.12 - Step 6: Final answer
x = 27,245.44
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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.