Finding the Fourth Proportional to 126,197.74, 189,163.26 and 55,058.07
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Solution
The fourth proportional to 126,197.74, 189,163.26 and 55,058.07 is: 82,528.93
Step by Step Solution
- Step 1: Write the proportion equation
126,197.74 : 189,163.26 = 55,058.07 : x - Step 2: Convert to fraction form
126,197.74/189,163.26 = 55,058.07/x - Step 3: Cross multiply
126,197.74x = 189,163.26 × 55,058.07 - Step 4: Simplify right side
126,197.74x = 10,414,964,010.51 - Step 5: Solve for x
x = 10,414,964,010.51/126,197.74 - Step 6: Final answer
x = 82,528.93
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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.