Finding the Fourth Proportional to 119,252.80, 178,879.20 and 100,007.20
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Solution
The fourth proportional to 119,252.80, 178,879.20 and 100,007.20 is: 150,010.80
Step by Step Solution
- Step 1: Write the proportion equation
119,252.80 : 178,879.20 = 100,007.20 : x - Step 2: Convert to fraction form
119,252.80/178,879.20 = 100,007.20/x - Step 3: Cross multiply
119,252.80x = 178,879.20 × 100,007.20 - Step 4: Simplify right side
119,252.80x = 17,889,207,930.24 - Step 5: Solve for x
x = 17,889,207,930.24/119,252.80 - Step 6: Final answer
x = 150,010.80
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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.