Finding the Fourth Proportional to 122,902.38, 184,357.08 and 66,769.38
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Solution
The fourth proportional to 122,902.38, 184,357.08 and 66,769.38 is: 100,155.98
Step by Step Solution
- Step 1: Write the proportion equation
122,902.38 : 184,357.08 = 66,769.38 : x - Step 2: Convert to fraction form
122,902.38/184,357.08 = 66,769.38/x - Step 3: Cross multiply
122,902.38x = 184,357.08 × 66,769.38 - Step 4: Simplify right side
122,902.38x = 12,309,407,930.21 - Step 5: Solve for x
x = 12,309,407,930.21/122,902.38 - Step 6: Final answer
x = 100,155.98
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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.