Finding the Fourth Proportional to 116,476.44, 160,515.11 and 100,338.68
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Solution
The fourth proportional to 116,476.44, 160,515.11 and 100,338.68 is: 138,275.80
Step by Step Solution
- Step 1: Write the proportion equation
116,476.44 : 160,515.11 = 100,338.68 : x - Step 2: Convert to fraction form
116,476.44/160,515.11 = 100,338.68/x - Step 3: Cross multiply
116,476.44x = 160,515.11 × 100,338.68 - Step 4: Simplify right side
116,476.44x = 16,105,872,953.19 - Step 5: Solve for x
x = 16,105,872,953.19/116,476.44 - Step 6: Final answer
x = 138,275.80
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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.