Finding the Fourth Proportional to 100,676.36, 150,871.26 and 74,172.68
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Solution
The fourth proportional to 100,676.36, 150,871.26 and 74,172.68 is: 111,153.46
Step by Step Solution
- Step 1: Write the proportion equation
100,676.36 : 150,871.26 = 74,172.68 : x - Step 2: Convert to fraction form
100,676.36/150,871.26 = 74,172.68/x - Step 3: Cross multiply
100,676.36x = 150,871.26 × 74,172.68 - Step 4: Simplify right side
100,676.36x = 11,190,525,689.18 - Step 5: Solve for x
x = 11,190,525,689.18/100,676.36 - Step 6: Final answer
x = 111,153.46
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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.