Finding the Fourth Proportional to 129,274.28, 193,913.82 and 40,525.80
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Solution
The fourth proportional to 129,274.28, 193,913.82 and 40,525.80 is: 60,789.45
Step by Step Solution
- Step 1: Write the proportion equation
129,274.28 : 193,913.82 = 40,525.80 : x - Step 2: Convert to fraction form
129,274.28/193,913.82 = 40,525.80/x - Step 3: Cross multiply
129,274.28x = 193,913.82 × 40,525.80 - Step 4: Simplify right side
129,274.28x = 7,858,512,686.56 - Step 5: Solve for x
x = 7,858,512,686.56/129,274.28 - Step 6: Final answer
x = 60,789.45
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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.