Finding the Fourth Proportional to 129,296.42, 193,944.87 and 40,556.81
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Solution
The fourth proportional to 129,296.42, 193,944.87 and 40,556.81 is: 60,835.28
Step by Step Solution
- Step 1: Write the proportion equation
129,296.42 : 193,944.87 = 40,556.81 : x - Step 2: Convert to fraction form
129,296.42/193,944.87 = 40,556.81/x - Step 3: Cross multiply
129,296.42x = 193,944.87 × 40,556.81 - Step 4: Simplify right side
129,296.42x = 7,865,784,273.34 - Step 5: Solve for x
x = 7,865,784,273.34/129,296.42 - Step 6: Final answer
x = 60,835.28
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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.