Finding the Fourth Proportional to 126,804.63, 174,989.13 and 68,661.09
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Solution
The fourth proportional to 126,804.63, 174,989.13 and 68,661.09 is: 94,751.62
Step by Step Solution
- Step 1: Write the proportion equation
126,804.63 : 174,989.13 = 68,661.09 : x - Step 2: Convert to fraction form
126,804.63/174,989.13 = 68,661.09/x - Step 3: Cross multiply
126,804.63x = 174,989.13 × 68,661.09 - Step 4: Simplify right side
126,804.63x = 12,014,943,529.01 - Step 5: Solve for x
x = 12,014,943,529.01/126,804.63 - Step 6: Final answer
x = 94,751.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.