Finding the Fourth Proportional to 125,986.29, 173,861.55 and 69,397.53
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Solution
The fourth proportional to 125,986.29, 173,861.55 and 69,397.53 is: 95,768.85
Step by Step Solution
- Step 1: Write the proportion equation
125,986.29 : 173,861.55 = 69,397.53 : x - Step 2: Convert to fraction form
125,986.29/173,861.55 = 69,397.53/x - Step 3: Cross multiply
125,986.29x = 173,861.55 × 69,397.53 - Step 4: Simplify right side
125,986.29x = 12,065,562,131.97 - Step 5: Solve for x
x = 12,065,562,131.97/125,986.29 - Step 6: Final answer
x = 95,768.85
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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.