Finding the Fourth Proportional to 140,198.42, 193,471.26 and 79,767.74
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Solution
The fourth proportional to 140,198.42, 193,471.26 and 79,767.74 is: 110,078.02
Step by Step Solution
- Step 1: Write the proportion equation
140,198.42 : 193,471.26 = 79,767.74 : x - Step 2: Convert to fraction form
140,198.42/193,471.26 = 79,767.74/x - Step 3: Cross multiply
140,198.42x = 193,471.26 × 79,767.74 - Step 4: Simplify right side
140,198.42x = 15,432,765,165.15 - Step 5: Solve for x
x = 15,432,765,165.15/140,198.42 - Step 6: Final answer
x = 110,078.02
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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.