Finding the Fourth Proportional to 122,209.44, 168,396.21 and 98,239.92
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Solution
The fourth proportional to 122,209.44, 168,396.21 and 98,239.92 is: 135,367.86
Step by Step Solution
- Step 1: Write the proportion equation
122,209.44 : 168,396.21 = 98,239.92 : x - Step 2: Convert to fraction form
122,209.44/168,396.21 = 98,239.92/x - Step 3: Cross multiply
122,209.44x = 168,396.21 × 98,239.92 - Step 4: Simplify right side
122,209.44x = 16,543,230,198.70 - Step 5: Solve for x
x = 16,543,230,198.70/122,209.44 - Step 6: Final answer
x = 135,367.86
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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.