Finding the Fourth Proportional to 127,315.40, 190,993.74 and 43,080.68
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Solution
The fourth proportional to 127,315.40, 190,993.74 and 43,080.68 is: 64,628.00
Step by Step Solution
- Step 1: Write the proportion equation
127,315.40 : 190,993.74 = 43,080.68 : x - Step 2: Convert to fraction form
127,315.40/190,993.74 = 43,080.68/x - Step 3: Cross multiply
127,315.40x = 190,993.74 × 43,080.68 - Step 4: Simplify right side
127,315.40x = 8,228,140,194.94 - Step 5: Solve for x
x = 8,228,140,194.94/127,315.40 - Step 6: Final answer
x = 64,628.00
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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.