Finding the Fourth Proportional to 127,724.07, 176,264.68 and 71,135.44
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Solution
The fourth proportional to 127,724.07, 176,264.68 and 71,135.44 is: 98,169.95
Step by Step Solution
- Step 1: Write the proportion equation
127,724.07 : 176,264.68 = 71,135.44 : x - Step 2: Convert to fraction form
127,724.07/176,264.68 = 71,135.44/x - Step 3: Cross multiply
127,724.07x = 176,264.68 × 71,135.44 - Step 4: Simplify right side
127,724.07x = 12,538,665,568.26 - Step 5: Solve for x
x = 12,538,665,568.26/127,724.07 - Step 6: Final answer
x = 98,169.95
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1.5x scale
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.