Finding the Fourth Proportional to 104,067.68, 143,619.84 and 58,729.08
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Solution
The fourth proportional to 104,067.68, 143,619.84 and 58,729.08 is: 81,049.76
Step by Step Solution
- Step 1: Write the proportion equation
104,067.68 : 143,619.84 = 58,729.08 : x - Step 2: Convert to fraction form
104,067.68/143,619.84 = 58,729.08/x - Step 3: Cross multiply
104,067.68x = 143,619.84 × 58,729.08 - Step 4: Simplify right side
104,067.68x = 8,434,660,779.30 - Step 5: Solve for x
x = 8,434,660,779.30/104,067.68 - Step 6: Final answer
x = 81,049.76
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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.