Finding the Fourth Proportional to 144,062.27, 198,819.75 and 80,405.99
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Solution
The fourth proportional to 144,062.27, 198,819.75 and 80,405.99 is: 110,967.98
Step by Step Solution
- Step 1: Write the proportion equation
144,062.27 : 198,819.75 = 80,405.99 : x - Step 2: Convert to fraction form
144,062.27/198,819.75 = 80,405.99/x - Step 3: Cross multiply
144,062.27x = 198,819.75 × 80,405.99 - Step 4: Simplify right side
144,062.27x = 15,986,298,830.30 - Step 5: Solve for x
x = 15,986,298,830.30/144,062.27 - Step 6: Final answer
x = 110,967.98
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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.