Finding the Fourth Proportional to 126,669.06, 189,896.27 and 55,537.79
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Solution
The fourth proportional to 126,669.06, 189,896.27 and 55,537.79 is: 83,259.63
Step by Step Solution
- Step 1: Write the proportion equation
126,669.06 : 189,896.27 = 55,537.79 : x - Step 2: Convert to fraction form
126,669.06/189,896.27 = 55,537.79/x - Step 3: Cross multiply
126,669.06x = 189,896.27 × 55,537.79 - Step 4: Simplify right side
126,669.06x = 10,546,418,940.56 - Step 5: Solve for x
x = 10,546,418,940.56/126,669.06 - Step 6: Final answer
x = 83,259.63
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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.