Finding the Fourth Proportional to 122,197.80, 171,310.20 and 122,197.80
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Solution
The fourth proportional to 122,197.80, 171,310.20 and 122,197.80 is: 171,310.20
Step by Step Solution
- Step 1: Write the proportion equation
122,197.80 : 171,310.20 = 122,197.80 : x - Step 2: Convert to fraction form
122,197.80/171,310.20 = 122,197.80/x - Step 3: Cross multiply
122,197.80x = 171,310.20 × 122,197.80 - Step 4: Simplify right side
122,197.80x = 20,933,729,557.56 - Step 5: Solve for x
x = 20,933,729,557.56/122,197.80 - Step 6: Final answer
x = 171,310.20
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.