Finding the Fourth Proportional to 113,638.68, 170,343.18 and 46,986.84
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Solution
The fourth proportional to 113,638.68, 170,343.18 and 46,986.84 is: 70,432.78
Step by Step Solution
- Step 1: Write the proportion equation
113,638.68 : 170,343.18 = 46,986.84 : x - Step 2: Convert to fraction form
113,638.68/170,343.18 = 46,986.84/x - Step 3: Cross multiply
113,638.68x = 170,343.18 × 46,986.84 - Step 4: Simplify right side
113,638.68x = 8,003,887,743.75 - Step 5: Solve for x
x = 8,003,887,743.75/113,638.68 - Step 6: Final answer
x = 70,432.78
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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.