Finding the Fourth Proportional to 140,378.04, 193,694.94 and 83,794.68
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Solution
The fourth proportional to 140,378.04, 193,694.94 and 83,794.68 is: 115,620.69
Step by Step Solution
- Step 1: Write the proportion equation
140,378.04 : 193,694.94 = 83,794.68 : x - Step 2: Convert to fraction form
140,378.04/193,694.94 = 83,794.68/x - Step 3: Cross multiply
140,378.04x = 193,694.94 × 83,794.68 - Step 4: Simplify right side
140,378.04x = 16,230,605,514.92 - Step 5: Solve for x
x = 16,230,605,514.92/140,378.04 - Step 6: Final answer
x = 115,620.69
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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.