Finding the Fourth Proportional to 131,276.48, 196,635.36 and 68,757.44
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Solution
The fourth proportional to 131,276.48, 196,635.36 and 68,757.44 is: 102,989.84
Step by Step Solution
- Step 1: Write the proportion equation
131,276.48 : 196,635.36 = 68,757.44 : x - Step 2: Convert to fraction form
131,276.48/196,635.36 = 68,757.44/x - Step 3: Cross multiply
131,276.48x = 196,635.36 × 68,757.44 - Step 4: Simplify right side
131,276.48x = 13,520,143,967.08 - Step 5: Solve for x
x = 13,520,143,967.08/131,276.48 - Step 6: Final answer
x = 102,989.84
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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.