Finding the Fourth Proportional to 190,808.19, 263,304.99 and 105,919.77
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Solution
The fourth proportional to 190,808.19, 263,304.99 and 105,919.77 is: 146,163.56
Step by Step Solution
- Step 1: Write the proportion equation
190,808.19 : 263,304.99 = 105,919.77 : x - Step 2: Convert to fraction form
190,808.19/263,304.99 = 105,919.77/x - Step 3: Cross multiply
190,808.19x = 263,304.99 × 105,919.77 - Step 4: Simplify right side
190,808.19x = 27,889,203,980.65 - Step 5: Solve for x
x = 27,889,203,980.65/190,808.19 - Step 6: Final answer
x = 146,163.56
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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.