Finding the Fourth Proportional to 135,818.38, 203,602.84 and 47,009.78
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Solution
The fourth proportional to 135,818.38, 203,602.84 and 47,009.78 is: 70,471.50
Step by Step Solution
- Step 1: Write the proportion equation
135,818.38 : 203,602.84 = 47,009.78 : x - Step 2: Convert to fraction form
135,818.38/203,602.84 = 47,009.78/x - Step 3: Cross multiply
135,818.38x = 203,602.84 × 47,009.78 - Step 4: Simplify right side
135,818.38x = 9,571,324,520.03 - Step 5: Solve for x
x = 9,571,324,520.03/135,818.38 - Step 6: Final answer
x = 70,471.50
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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.