Finding the Fourth Proportional to 100,271.22, 138,374.24 and 54,951.99
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Solution
The fourth proportional to 100,271.22, 138,374.24 and 54,951.99 is: 75,833.72
Step by Step Solution
- Step 1: Write the proportion equation
100,271.22 : 138,374.24 = 54,951.99 : x - Step 2: Convert to fraction form
100,271.22/138,374.24 = 54,951.99/x - Step 3: Cross multiply
100,271.22x = 138,374.24 × 54,951.99 - Step 4: Simplify right side
100,271.22x = 7,603,939,577.98 - Step 5: Solve for x
x = 7,603,939,577.98/100,271.22 - Step 6: Final answer
x = 75,833.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.