Finding the Fourth Proportional to 146,516.90, 202,183.55 and 81,974.94
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Solution
The fourth proportional to 146,516.90, 202,183.55 and 81,974.94 is: 113,119.95
Step by Step Solution
- Step 1: Write the proportion equation
146,516.90 : 202,183.55 = 81,974.94 : x - Step 2: Convert to fraction form
146,516.90/202,183.55 = 81,974.94/x - Step 3: Cross multiply
146,516.90x = 202,183.55 × 81,974.94 - Step 4: Simplify right side
146,516.90x = 16,573,984,380.24 - Step 5: Solve for x
x = 16,573,984,380.24/146,516.90 - Step 6: Final answer
x = 113,119.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.