Finding the Fourth Proportional to 127,755.44, 176,286.12 and 74,040.08
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Solution
The fourth proportional to 127,755.44, 176,286.12 and 74,040.08 is: 102,165.81
Step by Step Solution
- Step 1: Write the proportion equation
127,755.44 : 176,286.12 = 74,040.08 : x - Step 2: Convert to fraction form
127,755.44/176,286.12 = 74,040.08/x - Step 3: Cross multiply
127,755.44x = 176,286.12 × 74,040.08 - Step 4: Simplify right side
127,755.44x = 13,052,238,427.69 - Step 5: Solve for x
x = 13,052,238,427.69/127,755.44 - Step 6: Final answer
x = 102,165.81
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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.