Finding the Fourth Proportional to 135,706.20, 203,559.30 and 100,276.80
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Solution
The fourth proportional to 135,706.20, 203,559.30 and 100,276.80 is: 150,415.20
Step by Step Solution
- Step 1: Write the proportion equation
135,706.20 : 203,559.30 = 100,276.80 : x - Step 2: Convert to fraction form
135,706.20/203,559.30 = 100,276.80/x - Step 3: Cross multiply
135,706.20x = 203,559.30 × 100,276.80 - Step 4: Simplify right side
135,706.20x = 20,412,275,214.24 - Step 5: Solve for x
x = 20,412,275,214.24/135,706.20 - Step 6: Final answer
x = 150,415.20
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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.