Finding the Fourth Proportional to 135,074.32, 202,604.12 and 68,512.70
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Solution
The fourth proportional to 135,074.32, 202,604.12 and 68,512.70 is: 102,765.32
Step by Step Solution
- Step 1: Write the proportion equation
135,074.32 : 202,604.12 = 68,512.70 : x - Step 2: Convert to fraction form
135,074.32/202,604.12 = 68,512.70/x - Step 3: Cross multiply
135,074.32x = 202,604.12 × 68,512.70 - Step 4: Simplify right side
135,074.32x = 13,880,955,713.19 - Step 5: Solve for x
x = 13,880,955,713.19/135,074.32 - Step 6: Final answer
x = 102,765.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.