Finding the Fourth Proportional to 68,471.40, 102,512.70 and 68,471.40
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Solution
The fourth proportional to 68,471.40, 102,512.70 and 68,471.40 is: 102,512.70
Step by Step Solution
- Step 1: Write the proportion equation
68,471.40 : 102,512.70 = 68,471.40 : x - Step 2: Convert to fraction form
68,471.40/102,512.70 = 68,471.40/x - Step 3: Cross multiply
68,471.40x = 102,512.70 × 68,471.40 - Step 4: Simplify right side
68,471.40x = 7,019,188,086.78 - Step 5: Solve for x
x = 7,019,188,086.78/68,471.40 - Step 6: Final answer
x = 102,512.70
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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.