Finding the Fourth Proportional to 126,645.68, 189,958.66 and 51,745.88
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Solution
The fourth proportional to 126,645.68, 189,958.66 and 51,745.88 is: 77,614.79
Step by Step Solution
- Step 1: Write the proportion equation
126,645.68 : 189,958.66 = 51,745.88 : x - Step 2: Convert to fraction form
126,645.68/189,958.66 = 51,745.88/x - Step 3: Cross multiply
126,645.68x = 189,958.66 × 51,745.88 - Step 4: Simplify right side
126,645.68x = 9,829,578,025.32 - Step 5: Solve for x
x = 9,829,578,025.32/126,645.68 - Step 6: Final answer
x = 77,614.79
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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.