Finding the Fourth Proportional to 159,688.44, 239,680.08 and 80,857.98
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Solution
The fourth proportional to 159,688.44, 239,680.08 and 80,857.98 is: 121,361.62
Step by Step Solution
- Step 1: Write the proportion equation
159,688.44 : 239,680.08 = 80,857.98 : x - Step 2: Convert to fraction form
159,688.44/239,680.08 = 80,857.98/x - Step 3: Cross multiply
159,688.44x = 239,680.08 × 80,857.98 - Step 4: Simplify right side
159,688.44x = 19,380,047,115.04 - Step 5: Solve for x
x = 19,380,047,115.04/159,688.44 - Step 6: Final answer
x = 121,361.62
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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.