Finding the Fourth Proportional to 157,361.43, 217,152.67 and 85,741.99
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Solution
The fourth proportional to 157,361.43, 217,152.67 and 85,741.99 is: 118,320.62
Step by Step Solution
- Step 1: Write the proportion equation
157,361.43 : 217,152.67 = 85,741.99 : x - Step 2: Convert to fraction form
157,361.43/217,152.67 = 85,741.99/x - Step 3: Cross multiply
157,361.43x = 217,152.67 × 85,741.99 - Step 4: Simplify right side
157,361.43x = 18,619,102,059.61 - Step 5: Solve for x
x = 18,619,102,059.61/157,361.43 - Step 6: Final answer
x = 118,320.62
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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.