Finding the Fourth Proportional to 125,814.81, 173,629.22 and 72,110.19
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Solution
The fourth proportional to 125,814.81, 173,629.22 and 72,110.19 is: 99,514.80
Step by Step Solution
- Step 1: Write the proportion equation
125,814.81 : 173,629.22 = 72,110.19 : x - Step 2: Convert to fraction form
125,814.81/173,629.22 = 72,110.19/x - Step 3: Cross multiply
125,814.81x = 173,629.22 × 72,110.19 - Step 4: Simplify right side
125,814.81x = 12,520,435,683.20 - Step 5: Solve for x
x = 12,520,435,683.20/125,814.81 - Step 6: Final answer
x = 99,514.80
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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.