Finding the Fourth Proportional to 130,361.43, 195,211.26 and 109,245.99
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Solution
The fourth proportional to 130,361.43, 195,211.26 and 109,245.99 is: 163,591.70
Step by Step Solution
- Step 1: Write the proportion equation
130,361.43 : 195,211.26 = 109,245.99 : x - Step 2: Convert to fraction form
130,361.43/195,211.26 = 109,245.99/x - Step 3: Cross multiply
130,361.43x = 195,211.26 × 109,245.99 - Step 4: Simplify right side
130,361.43x = 21,326,047,357.85 - Step 5: Solve for x
x = 21,326,047,357.85/130,361.43 - Step 6: Final answer
x = 163,591.70
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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.