Finding the Fourth Proportional to 102,914.14, 154,122.06 and 71,235.44
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Solution
The fourth proportional to 102,914.14, 154,122.06 and 71,235.44 is: 106,680.70
Step by Step Solution
- Step 1: Write the proportion equation
102,914.14 : 154,122.06 = 71,235.44 : x - Step 2: Convert to fraction form
102,914.14/154,122.06 = 71,235.44/x - Step 3: Cross multiply
102,914.14x = 154,122.06 × 71,235.44 - Step 4: Simplify right side
102,914.14x = 10,978,952,401.63 - Step 5: Solve for x
x = 10,978,952,401.63/102,914.14 - Step 6: Final answer
x = 106,680.70
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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.