Finding the Fourth Proportional to 143,142.37, 197,589.57 and 122,918.02
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Solution
The fourth proportional to 143,142.37, 197,589.57 and 122,918.02 is: 169,672.46
Step by Step Solution
- Step 1: Write the proportion equation
143,142.37 : 197,589.57 = 122,918.02 : x - Step 2: Convert to fraction form
143,142.37/197,589.57 = 122,918.02/x - Step 3: Cross multiply
143,142.37x = 197,589.57 × 122,918.02 - Step 4: Simplify right side
143,142.37x = 24,287,318,717.05 - Step 5: Solve for x
x = 24,287,318,717.05/143,142.37 - Step 6: Final answer
x = 169,672.46
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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.