Finding the Fourth Proportional to 141,351.13, 195,075.71 and 80,940.79
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Solution
The fourth proportional to 141,351.13, 195,075.71 and 80,940.79 is: 111,704.68
Step by Step Solution
- Step 1: Write the proportion equation
141,351.13 : 195,075.71 = 80,940.79 : x - Step 2: Convert to fraction form
141,351.13/195,075.71 = 80,940.79/x - Step 3: Cross multiply
141,351.13x = 195,075.71 × 80,940.79 - Step 4: Simplify right side
141,351.13x = 15,789,582,077.21 - Step 5: Solve for x
x = 15,789,582,077.21/141,351.13 - Step 6: Final answer
x = 111,704.68
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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.