Finding the Fourth Proportional to 157,527.36, 217,381.20 and 85,906.08
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Solution
The fourth proportional to 157,527.36, 217,381.20 and 85,906.08 is: 118,546.81
Step by Step Solution
- Step 1: Write the proportion equation
157,527.36 : 217,381.20 = 85,906.08 : x - Step 2: Convert to fraction form
157,527.36/217,381.20 = 85,906.08/x - Step 3: Cross multiply
157,527.36x = 217,381.20 × 85,906.08 - Step 4: Simplify right side
157,527.36x = 18,674,366,757.70 - Step 5: Solve for x
x = 18,674,366,757.70/157,527.36 - Step 6: Final answer
x = 118,546.81
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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.