Finding the Fourth Proportional to 189,909.17, 284,902.17 and 84,728.13
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Solution
The fourth proportional to 189,909.17, 284,902.17 and 84,728.13 is: 127,109.33
Step by Step Solution
- Step 1: Write the proportion equation
189,909.17 : 284,902.17 = 84,728.13 : x - Step 2: Convert to fraction form
189,909.17/284,902.17 = 84,728.13/x - Step 3: Cross multiply
189,909.17x = 284,902.17 × 84,728.13 - Step 4: Simplify right side
189,909.17x = 24,139,228,097.04 - Step 5: Solve for x
x = 24,139,228,097.04/189,909.17 - Step 6: Final answer
x = 127,109.33
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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.