Finding the Fourth Proportional to 125,986.41, 173,861.25 and 69,397.79
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Solution
The fourth proportional to 125,986.41, 173,861.25 and 69,397.79 is: 95,768.95
Step by Step Solution
- Step 1: Write the proportion equation
125,986.41 : 173,861.25 = 69,397.79 : x - Step 2: Convert to fraction form
125,986.41/173,861.25 = 69,397.79/x - Step 3: Cross multiply
125,986.41x = 173,861.25 × 69,397.79 - Step 4: Simplify right side
125,986.41x = 12,065,585,647.33 - Step 5: Solve for x
x = 12,065,585,647.33/125,986.41 - Step 6: Final answer
x = 95,768.95
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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.