Finding the Fourth Proportional to 125,515.96, 173,213.14 and 68,927.74
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Solution
The fourth proportional to 125,515.96, 173,213.14 and 68,927.74 is: 95,120.89
Step by Step Solution
- Step 1: Write the proportion equation
125,515.96 : 173,213.14 = 68,927.74 : x - Step 2: Convert to fraction form
125,515.96/173,213.14 = 68,927.74/x - Step 3: Cross multiply
125,515.96x = 173,213.14 × 68,927.74 - Step 4: Simplify right side
125,515.96x = 11,939,189,673.15 - Step 5: Solve for x
x = 11,939,189,673.15/125,515.96 - Step 6: Final answer
x = 95,120.89
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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.