Finding the Fourth Proportional to 129,157.84, 193,735.52 and 76,529.44
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Solution
The fourth proportional to 129,157.84, 193,735.52 and 76,529.44 is: 114,793.43
Step by Step Solution
- Step 1: Write the proportion equation
129,157.84 : 193,735.52 = 76,529.44 : x - Step 2: Convert to fraction form
129,157.84/193,735.52 = 76,529.44/x - Step 3: Cross multiply
129,157.84x = 193,735.52 × 76,529.44 - Step 4: Simplify right side
129,157.84x = 14,826,470,853.71 - Step 5: Solve for x
x = 14,826,470,853.71/129,157.84 - Step 6: Final answer
x = 114,793.43
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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.