Finding the Fourth Proportional to 127,426.68, 175,589.64 and 98,571.12
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Solution
The fourth proportional to 127,426.68, 175,589.64 and 98,571.12 is: 135,827.66
Step by Step Solution
- Step 1: Write the proportion equation
127,426.68 : 175,589.64 = 98,571.12 : x - Step 2: Convert to fraction form
127,426.68/175,589.64 = 98,571.12/x - Step 3: Cross multiply
127,426.68x = 175,589.64 × 98,571.12 - Step 4: Simplify right side
127,426.68x = 17,308,067,475.20 - Step 5: Solve for x
x = 17,308,067,475.20/127,426.68 - Step 6: Final answer
x = 135,827.66
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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.