Finding the Fourth Proportional to 143,813.94, 198,469.99 and 80,152.19
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Solution
The fourth proportional to 143,813.94, 198,469.99 and 80,152.19 is: 110,613.79
Step by Step Solution
- Step 1: Write the proportion equation
143,813.94 : 198,469.99 = 80,152.19 : x - Step 2: Convert to fraction form
143,813.94/198,469.99 = 80,152.19/x - Step 3: Cross multiply
143,813.94x = 198,469.99 × 80,152.19 - Step 4: Simplify right side
143,813.94x = 15,907,804,722.30 - Step 5: Solve for x
x = 15,907,804,722.30/143,813.94 - Step 6: Final answer
x = 110,613.79
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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.