Finding the Fourth Proportional to 190,687.64, 263,139.88 and 104,644.68
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Solution
The fourth proportional to 190,687.64, 263,139.88 and 104,644.68 is: 144,404.69
Step by Step Solution
- Step 1: Write the proportion equation
190,687.64 : 263,139.88 = 104,644.68 : x - Step 2: Convert to fraction form
190,687.64/263,139.88 = 104,644.68/x - Step 3: Cross multiply
190,687.64x = 263,139.88 × 104,644.68 - Step 4: Simplify right side
190,687.64x = 27,536,189,558.75 - Step 5: Solve for x
x = 27,536,189,558.75/190,687.64 - Step 6: Final answer
x = 144,404.69
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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.