Finding the Fourth Proportional to 107,163.18, 147,923.46 and 73,147.32
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Solution
The fourth proportional to 107,163.18, 147,923.46 and 73,147.32 is: 100,969.42
Step by Step Solution
- Step 1: Write the proportion equation
107,163.18 : 147,923.46 = 73,147.32 : x - Step 2: Convert to fraction form
107,163.18/147,923.46 = 73,147.32/x - Step 3: Cross multiply
107,163.18x = 147,923.46 × 73,147.32 - Step 4: Simplify right side
107,163.18x = 10,820,204,664.13 - Step 5: Solve for x
x = 10,820,204,664.13/107,163.18 - Step 6: Final answer
x = 100,969.42
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1.5x scale
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.