Finding the Fourth Proportional to 121,901.47, 182,786.46 and 55,305.26
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Solution
The fourth proportional to 121,901.47, 182,786.46 and 55,305.26 is: 82,928.06
Step by Step Solution
- Step 1: Write the proportion equation
121,901.47 : 182,786.46 = 55,305.26 : x - Step 2: Convert to fraction form
121,901.47/182,786.46 = 55,305.26/x - Step 3: Cross multiply
121,901.47x = 182,786.46 × 55,305.26 - Step 4: Simplify right side
121,901.47x = 10,109,052,418.25 - Step 5: Solve for x
x = 10,109,052,418.25/121,901.47 - Step 6: Final answer
x = 82,928.06
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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.