Finding the Fourth Proportional to 138,057.21, 207,107.69 and 44,541.09
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Solution
The fourth proportional to 138,057.21, 207,107.69 and 44,541.09 is: 66,818.69
Step by Step Solution
- Step 1: Write the proportion equation
138,057.21 : 207,107.69 = 44,541.09 : x - Step 2: Convert to fraction form
138,057.21/207,107.69 = 44,541.09/x - Step 3: Cross multiply
138,057.21x = 207,107.69 × 44,541.09 - Step 4: Simplify right side
138,057.21x = 9,224,802,037.28 - Step 5: Solve for x
x = 9,224,802,037.28/138,057.21 - Step 6: Final answer
x = 66,818.69
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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.