Finding the Fourth Proportional to 189,108.75, 283,711.73 and 70,781.79
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Solution
The fourth proportional to 189,108.75, 283,711.73 and 70,781.79 is: 106,190.88
Step by Step Solution
- Step 1: Write the proportion equation
189,108.75 : 283,711.73 = 70,781.79 : x - Step 2: Convert to fraction form
189,108.75/283,711.73 = 70,781.79/x - Step 3: Cross multiply
189,108.75x = 283,711.73 × 70,781.79 - Step 4: Simplify right side
189,108.75x = 20,081,623,739.49 - Step 5: Solve for x
x = 20,081,623,739.49/189,108.75 - Step 6: Final answer
x = 106,190.88
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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.