Finding the Fourth Proportional to 113,891.36, 170,837.65 and 74,696.68
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Solution
The fourth proportional to 113,891.36, 170,837.65 and 74,696.68 is: 112,045.41
Step by Step Solution
- Step 1: Write the proportion equation
113,891.36 : 170,837.65 = 74,696.68 : x - Step 2: Convert to fraction form
113,891.36/170,837.65 = 74,696.68/x - Step 3: Cross multiply
113,891.36x = 170,837.65 × 74,696.68 - Step 4: Simplify right side
113,891.36x = 12,761,004,419.81 - Step 5: Solve for x
x = 12,761,004,419.81/113,891.36 - Step 6: Final answer
x = 112,045.41
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1.5x scale
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.