Finding the Fourth Proportional to 140,383.62, 193,729.08 and 79,954.26
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Solution
The fourth proportional to 140,383.62, 193,729.08 and 79,954.26 is: 110,336.70
Step by Step Solution
- Step 1: Write the proportion equation
140,383.62 : 193,729.08 = 79,954.26 : x - Step 2: Convert to fraction form
140,383.62/193,729.08 = 79,954.26/x - Step 3: Cross multiply
140,383.62x = 193,729.08 × 79,954.26 - Step 4: Simplify right side
140,383.62x = 15,489,465,231.88 - Step 5: Solve for x
x = 15,489,465,231.88/140,383.62 - Step 6: Final answer
x = 110,336.70
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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.