Finding the Fourth Proportional to 125,748.74, 173,532.39 and 71,311.19
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Solution
The fourth proportional to 125,748.74, 173,532.39 and 71,311.19 is: 98,408.95
Step by Step Solution
- Step 1: Write the proportion equation
125,748.74 : 173,532.39 = 71,311.19 : x - Step 2: Convert to fraction form
125,748.74/173,532.39 = 71,311.19/x - Step 3: Cross multiply
125,748.74x = 173,532.39 × 71,311.19 - Step 4: Simplify right side
125,748.74x = 12,374,800,366.78 - Step 5: Solve for x
x = 12,374,800,366.78/125,748.74 - Step 6: Final answer
x = 98,408.95
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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.