Finding the Fourth Proportional to 119,136.29, 178,704.50 and 74,794.19
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Solution
The fourth proportional to 119,136.29, 178,704.50 and 74,794.19 is: 112,191.32
Step by Step Solution
- Step 1: Write the proportion equation
119,136.29 : 178,704.50 = 74,794.19 : x - Step 2: Convert to fraction form
119,136.29/178,704.50 = 74,794.19/x - Step 3: Cross multiply
119,136.29x = 178,704.50 × 74,794.19 - Step 4: Simplify right side
119,136.29x = 13,366,057,059.36 - Step 5: Solve for x
x = 13,366,057,059.36/119,136.29 - Step 6: Final answer
x = 112,191.32
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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.