Finding the Fourth Proportional to 122,843.21, 169,616.00 and 120,881.43
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Solution
The fourth proportional to 122,843.21, 169,616.00 and 120,881.43 is: 166,907.28
Step by Step Solution
- Step 1: Write the proportion equation
122,843.21 : 169,616.00 = 120,881.43 : x - Step 2: Convert to fraction form
122,843.21/169,616.00 = 120,881.43/x - Step 3: Cross multiply
122,843.21x = 169,616.00 × 120,881.43 - Step 4: Simplify right side
122,843.21x = 20,503,424,933.08 - Step 5: Solve for x
x = 20,503,424,933.08/122,843.21 - Step 6: Final answer
x = 166,907.28
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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.