Finding the Fourth Proportional to 125,745.96, 173,514.88 and 72,027.77
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Solution
The fourth proportional to 125,745.96, 173,514.88 and 72,027.77 is: 99,389.99
Step by Step Solution
- Step 1: Write the proportion equation
125,745.96 : 173,514.88 = 72,027.77 : x - Step 2: Convert to fraction form
125,745.96/173,514.88 = 72,027.77/x - Step 3: Cross multiply
125,745.96x = 173,514.88 × 72,027.77 - Step 4: Simplify right side
125,745.96x = 12,497,890,121.94 - Step 5: Solve for x
x = 12,497,890,121.94/125,745.96 - Step 6: Final answer
x = 99,389.99
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1.5x scale
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.