Finding the Fourth Proportional to 189,678.12, 284,593.68 and 84,425.10
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Solution
The fourth proportional to 189,678.12, 284,593.68 and 84,425.10 is: 126,671.70
Step by Step Solution
- Step 1: Write the proportion equation
189,678.12 : 284,593.68 = 84,425.10 : x - Step 2: Convert to fraction form
189,678.12/284,593.68 = 84,425.10/x - Step 3: Cross multiply
189,678.12x = 284,593.68 × 84,425.10 - Step 4: Simplify right side
189,678.12x = 24,026,849,893.37 - Step 5: Solve for x
x = 24,026,849,893.37/189,678.12 - Step 6: Final answer
x = 126,671.70
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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.