Finding the Fourth Proportional to 187,879.30, 281,941.12 and 81,367.26
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Solution
The fourth proportional to 187,879.30, 281,941.12 and 81,367.26 is: 122,103.80
Step by Step Solution
- Step 1: Write the proportion equation
187,879.30 : 281,941.12 = 81,367.26 : x - Step 2: Convert to fraction form
187,879.30/281,941.12 = 81,367.26/x - Step 3: Cross multiply
187,879.30x = 281,941.12 × 81,367.26 - Step 4: Simplify right side
187,879.30x = 22,940,776,415.73 - Step 5: Solve for x
x = 22,940,776,415.73/187,879.30 - Step 6: Final answer
x = 122,103.80
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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.