Finding the Fourth Proportional to 140,385.62, 193,731.84 and 79,956.26
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Solution
The fourth proportional to 140,385.62, 193,731.84 and 79,956.26 is: 110,339.46
Step by Step Solution
- Step 1: Write the proportion equation
140,385.62 : 193,731.84 = 79,956.26 : x - Step 2: Convert to fraction form
140,385.62/193,731.84 = 79,956.26/x - Step 3: Cross multiply
140,385.62x = 193,731.84 × 79,956.26 - Step 4: Simplify right side
140,385.62x = 15,490,073,369.32 - Step 5: Solve for x
x = 15,490,073,369.32/140,385.62 - Step 6: Final answer
x = 110,339.46
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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.