Finding the Fourth Proportional to 154,187.97, 231,491.77 and 86,767.63
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Solution
The fourth proportional to 154,187.97, 231,491.77 and 86,767.63 is: 130,269.52
Step by Step Solution
- Step 1: Write the proportion equation
154,187.97 : 231,491.77 = 86,767.63 : x - Step 2: Convert to fraction form
154,187.97/231,491.77 = 86,767.63/x - Step 3: Cross multiply
154,187.97x = 231,491.77 × 86,767.63 - Step 4: Simplify right side
154,187.97x = 20,085,992,247.41 - Step 5: Solve for x
x = 20,085,992,247.41/154,187.97 - Step 6: Final answer
x = 130,269.52
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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.