Finding the Fourth Proportional to 134,912.20, 202,368.30 and 129,153.10
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Solution
The fourth proportional to 134,912.20, 202,368.30 and 129,153.10 is: 193,729.65
Step by Step Solution
- Step 1: Write the proportion equation
134,912.20 : 202,368.30 = 129,153.10 : x - Step 2: Convert to fraction form
134,912.20/202,368.30 = 129,153.10/x - Step 3: Cross multiply
134,912.20x = 202,368.30 × 129,153.10 - Step 4: Simplify right side
134,912.20x = 26,136,493,286.73 - Step 5: Solve for x
x = 26,136,493,286.73/134,912.20 - Step 6: Final answer
x = 193,729.65
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1.5x scale
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.