Finding the Fourth Proportional to 140,002.53, 193,198.68 and 79,572.12
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Solution
The fourth proportional to 140,002.53, 193,198.68 and 79,572.12 is: 109,806.79
Step by Step Solution
- Step 1: Write the proportion equation
140,002.53 : 193,198.68 = 79,572.12 : x - Step 2: Convert to fraction form
140,002.53/193,198.68 = 79,572.12/x - Step 3: Cross multiply
140,002.53x = 193,198.68 × 79,572.12 - Step 4: Simplify right side
140,002.53x = 15,373,228,548.80 - Step 5: Solve for x
x = 15,373,228,548.80/140,002.53 - Step 6: Final answer
x = 109,806.79
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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.