Finding the Fourth Proportional to 168,175.28, 252,136.50 and 79,378.28
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Solution
The fourth proportional to 168,175.28, 252,136.50 and 79,378.28 is: 119,007.75
Step by Step Solution
- Step 1: Write the proportion equation
168,175.28 : 252,136.50 = 79,378.28 : x - Step 2: Convert to fraction form
168,175.28/252,136.50 = 79,378.28/x - Step 3: Cross multiply
168,175.28x = 252,136.50 × 79,378.28 - Step 4: Simplify right side
168,175.28x = 20,014,161,695.22 - Step 5: Solve for x
x = 20,014,161,695.22/168,175.28 - Step 6: Final answer
x = 119,007.75
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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.