Finding the Fourth Proportional to 112,834.28, 155,704.97 and 61,837.29
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Solution
The fourth proportional to 112,834.28, 155,704.97 and 61,837.29 is: 85,331.99
Step by Step Solution
- Step 1: Write the proportion equation
112,834.28 : 155,704.97 = 61,837.29 : x - Step 2: Convert to fraction form
112,834.28/155,704.97 = 61,837.29/x - Step 3: Cross multiply
112,834.28x = 155,704.97 × 61,837.29 - Step 4: Simplify right side
112,834.28x = 9,628,373,075.14 - Step 5: Solve for x
x = 9,628,373,075.14/112,834.28 - Step 6: Final answer
x = 85,331.99
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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.