Finding the Fourth Proportional to 131,724.21, 197,586.62 and 75,928.98
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Solution
The fourth proportional to 131,724.21, 197,586.62 and 75,928.98 is: 113,893.65
Step by Step Solution
- Step 1: Write the proportion equation
131,724.21 : 197,586.62 = 75,928.98 : x - Step 2: Convert to fraction form
131,724.21/197,586.62 = 75,928.98/x - Step 3: Cross multiply
131,724.21x = 197,586.62 × 75,928.98 - Step 4: Simplify right side
131,724.21x = 15,002,550,518.25 - Step 5: Solve for x
x = 15,002,550,518.25/131,724.21 - Step 6: Final answer
x = 113,893.65
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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.