Finding the Fourth Proportional to 136,491.36, 188,286.12 and 93,976.08
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Solution
The fourth proportional to 136,491.36, 188,286.12 and 93,976.08 is: 129,637.45
Step by Step Solution
- Step 1: Write the proportion equation
136,491.36 : 188,286.12 = 93,976.08 : x - Step 2: Convert to fraction form
136,491.36/188,286.12 = 93,976.08/x - Step 3: Cross multiply
136,491.36x = 188,286.12 × 93,976.08 - Step 4: Simplify right side
136,491.36x = 17,694,391,476.01 - Step 5: Solve for x
x = 17,694,391,476.01/136,491.36 - Step 6: Final answer
x = 129,637.45
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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.