Finding the Fourth Proportional to 127,671.36, 176,194.08 and 73,939.20
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Solution
The fourth proportional to 127,671.36, 176,194.08 and 73,939.20 is: 102,040.50
Step by Step Solution
- Step 1: Write the proportion equation
127,671.36 : 176,194.08 = 73,939.20 : x - Step 2: Convert to fraction form
127,671.36/176,194.08 = 73,939.20/x - Step 3: Cross multiply
127,671.36x = 176,194.08 × 73,939.20 - Step 4: Simplify right side
127,671.36x = 13,027,649,319.94 - Step 5: Solve for x
x = 13,027,649,319.94/127,671.36 - Step 6: Final answer
x = 102,040.50
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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.