Finding the Fourth Proportional to 129,820.08, 194,646.36 and 50,942.28
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Solution
The fourth proportional to 129,820.08, 194,646.36 and 50,942.28 is: 76,380.55
Step by Step Solution
- Step 1: Write the proportion equation
129,820.08 : 194,646.36 = 50,942.28 : x - Step 2: Convert to fraction form
129,820.08/194,646.36 = 50,942.28/x - Step 3: Cross multiply
129,820.08x = 194,646.36 × 50,942.28 - Step 4: Simplify right side
129,820.08x = 9,915,729,372.10 - Step 5: Solve for x
x = 9,915,729,372.10/129,820.08 - Step 6: Final answer
x = 76,380.55
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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.