Finding the Fourth Proportional to 115,704.84, 159,625.56 and 75,403.92
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Solution
The fourth proportional to 115,704.84, 159,625.56 and 75,403.92 is: 104,026.70
Step by Step Solution
- Step 1: Write the proportion equation
115,704.84 : 159,625.56 = 75,403.92 : x - Step 2: Convert to fraction form
115,704.84/159,625.56 = 75,403.92/x - Step 3: Cross multiply
115,704.84x = 159,625.56 × 75,403.92 - Step 4: Simplify right side
115,704.84x = 12,036,392,956.20 - Step 5: Solve for x
x = 12,036,392,956.20/115,704.84 - Step 6: Final answer
x = 104,026.70
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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.