Finding the Fourth Proportional to 126,133.16, 189,236.64 and 40,742.07
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Solution
The fourth proportional to 126,133.16, 189,236.64 and 40,742.07 is: 61,125.03
Step by Step Solution
- Step 1: Write the proportion equation
126,133.16 : 189,236.64 = 40,742.07 : x - Step 2: Convert to fraction form
126,133.16/189,236.64 = 40,742.07/x - Step 3: Cross multiply
126,133.16x = 189,236.64 × 40,742.07 - Step 4: Simplify right side
126,133.16x = 7,709,892,433.44 - Step 5: Solve for x
x = 7,709,892,433.44/126,133.16 - Step 6: Final answer
x = 61,125.03
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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.