Finding the Fourth Proportional to 119,154.44, 178,704.43 and 71,136.63
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Solution
The fourth proportional to 119,154.44, 178,704.43 and 71,136.63 is: 106,688.68
Step by Step Solution
- Step 1: Write the proportion equation
119,154.44 : 178,704.43 = 71,136.63 : x - Step 2: Convert to fraction form
119,154.44/178,704.43 = 71,136.63/x - Step 3: Cross multiply
119,154.44x = 178,704.43 × 71,136.63 - Step 4: Simplify right side
119,154.44x = 12,712,430,738.43 - Step 5: Solve for x
x = 12,712,430,738.43/119,154.44 - Step 6: Final answer
x = 106,688.68
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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.