Finding the Fourth Proportional to 141,855.06, 212,863.71 and 71,739.54
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Solution
The fourth proportional to 141,855.06, 212,863.71 and 71,739.54 is: 107,650.33
Step by Step Solution
- Step 1: Write the proportion equation
141,855.06 : 212,863.71 = 71,739.54 : x - Step 2: Convert to fraction form
141,855.06/212,863.71 = 71,739.54/x - Step 3: Cross multiply
141,855.06x = 212,863.71 × 71,739.54 - Step 4: Simplify right side
141,855.06x = 15,270,744,638.09 - Step 5: Solve for x
x = 15,270,744,638.09/141,855.06 - Step 6: Final answer
x = 107,650.33
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1.5x scale
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.