Finding the Fourth Proportional to 189,680.12, 284,596.68 and 84,427.10
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Solution
The fourth proportional to 189,680.12, 284,596.68 and 84,427.10 is: 126,674.70
Step by Step Solution
- Step 1: Write the proportion equation
189,680.12 : 284,596.68 = 84,427.10 : x - Step 2: Convert to fraction form
189,680.12/284,596.68 = 84,427.10/x - Step 3: Cross multiply
189,680.12x = 284,596.68 × 84,427.10 - Step 4: Simplify right side
189,680.12x = 24,027,672,362.03 - Step 5: Solve for x
x = 24,027,672,362.03/189,680.12 - Step 6: Final answer
x = 126,674.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.