Finding the Fourth Proportional to 161,832.11, 223,423.99 and 143,877.42
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Solution
The fourth proportional to 161,832.11, 223,423.99 and 143,877.42 is: 198,635.90
Step by Step Solution
- Step 1: Write the proportion equation
161,832.11 : 223,423.99 = 143,877.42 : x - Step 2: Convert to fraction form
161,832.11/223,423.99 = 143,877.42/x - Step 3: Cross multiply
161,832.11x = 223,423.99 × 143,877.42 - Step 4: Simplify right side
161,832.11x = 32,145,667,247.31 - Step 5: Solve for x
x = 32,145,667,247.31/161,832.11 - Step 6: Final answer
x = 198,635.90
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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.