Finding the Fourth Proportional to 134,890.80, 202,161.24 and 90,450.96
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Solution
The fourth proportional to 134,890.80, 202,161.24 and 90,450.96 is: 135,559.12
Step by Step Solution
- Step 1: Write the proportion equation
134,890.80 : 202,161.24 = 90,450.96 : x - Step 2: Convert to fraction form
134,890.80/202,161.24 = 90,450.96/x - Step 3: Cross multiply
134,890.80x = 202,161.24 × 90,450.96 - Step 4: Simplify right side
134,890.80x = 18,285,678,232.79 - Step 5: Solve for x
x = 18,285,678,232.79/134,890.80 - Step 6: Final answer
x = 135,559.12
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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.