Finding the Fourth Proportional to 103,163.42, 154,745.13 and 68,094.88
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Solution
The fourth proportional to 103,163.42, 154,745.13 and 68,094.88 is: 102,142.31
Step by Step Solution
- Step 1: Write the proportion equation
103,163.42 : 154,745.13 = 68,094.88 : x - Step 2: Convert to fraction form
103,163.42/154,745.13 = 68,094.88/x - Step 3: Cross multiply
103,163.42x = 154,745.13 × 68,094.88 - Step 4: Simplify right side
103,163.42x = 10,537,350,284.21 - Step 5: Solve for x
x = 10,537,350,284.21/103,163.42 - Step 6: Final answer
x = 102,142.31
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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.