Finding the Fourth Proportional to 141,953.68, 213,078.21 and 104,555.98
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Solution
The fourth proportional to 141,953.68, 213,078.21 and 104,555.98 is: 156,942.75
Step by Step Solution
- Step 1: Write the proportion equation
141,953.68 : 213,078.21 = 104,555.98 : x - Step 2: Convert to fraction form
141,953.68/213,078.21 = 104,555.98/x - Step 3: Cross multiply
141,953.68x = 213,078.21 × 104,555.98 - Step 4: Simplify right side
141,953.68x = 22,278,601,063.20 - Step 5: Solve for x
x = 22,278,601,063.20/141,953.68 - Step 6: Final answer
x = 156,942.75
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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.