Finding the Fourth Proportional to 128,301.68, 192,481.68 and 58,201.04
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Solution
The fourth proportional to 128,301.68, 192,481.68 and 58,201.04 is: 87,314.79
Step by Step Solution
- Step 1: Write the proportion equation
128,301.68 : 192,481.68 = 58,201.04 : x - Step 2: Convert to fraction form
128,301.68/192,481.68 = 58,201.04/x - Step 3: Cross multiply
128,301.68x = 192,481.68 × 58,201.04 - Step 4: Simplify right side
128,301.68x = 11,202,633,956.95 - Step 5: Solve for x
x = 11,202,633,956.95/128,301.68 - Step 6: Final answer
x = 87,314.79
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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.