Finding the Fourth Proportional to 140,074.99, 193,312.63 and 79,651.26
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Solution
The fourth proportional to 140,074.99, 193,312.63 and 79,651.26 is: 109,923.94
Step by Step Solution
- Step 1: Write the proportion equation
140,074.99 : 193,312.63 = 79,651.26 : x - Step 2: Convert to fraction form
140,074.99/193,312.63 = 79,651.26/x - Step 3: Cross multiply
140,074.99x = 193,312.63 × 79,651.26 - Step 4: Simplify right side
140,074.99x = 15,397,594,553.41 - Step 5: Solve for x
x = 15,397,594,553.41/140,074.99 - Step 6: Final answer
x = 109,923.94
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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.