Finding the Fourth Proportional to 154,040.14, 212,571.24 and 84,186.68
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Solution
The fourth proportional to 154,040.14, 212,571.24 and 84,186.68 is: 116,175.34
Step by Step Solution
- Step 1: Write the proportion equation
154,040.14 : 212,571.24 = 84,186.68 : x - Step 2: Convert to fraction form
154,040.14/212,571.24 = 84,186.68/x - Step 3: Cross multiply
154,040.14x = 212,571.24 × 84,186.68 - Step 4: Simplify right side
154,040.14x = 17,895,666,477.31 - Step 5: Solve for x
x = 17,895,666,477.31/154,040.14 - Step 6: Final answer
x = 116,175.34
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1.5x scale
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.