Finding the Fourth Proportional to 135,761.60, 203,469.60 and 120,900.80
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Solution
The fourth proportional to 135,761.60, 203,469.60 and 120,900.80 is: 181,197.32
Step by Step Solution
- Step 1: Write the proportion equation
135,761.60 : 203,469.60 = 120,900.80 : x - Step 2: Convert to fraction form
135,761.60/203,469.60 = 120,900.80/x - Step 3: Cross multiply
135,761.60x = 203,469.60 × 120,900.80 - Step 4: Simplify right side
135,761.60x = 24,599,637,415.68 - Step 5: Solve for x
x = 24,599,637,415.68/135,761.60 - Step 6: Final answer
x = 181,197.32
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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.