Finding the Fourth Proportional to 122,905.60, 184,198.64 and 55,388.08
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Solution
The fourth proportional to 122,905.60, 184,198.64 and 55,388.08 is: 83,010.12
Step by Step Solution
- Step 1: Write the proportion equation
122,905.60 : 184,198.64 = 55,388.08 : x - Step 2: Convert to fraction form
122,905.60/184,198.64 = 55,388.08/x - Step 3: Cross multiply
122,905.60x = 184,198.64 × 55,388.08 - Step 4: Simplify right side
122,905.60x = 10,202,409,008.21 - Step 5: Solve for x
x = 10,202,409,008.21/122,905.60 - Step 6: Final answer
x = 83,010.12
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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.