Finding the Fourth Proportional to 113,376.20, 170,129.10 and 43,305.80
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Solution
The fourth proportional to 113,376.20, 170,129.10 and 43,305.80 is: 64,983.45
Step by Step Solution
- Step 1: Write the proportion equation
113,376.20 : 170,129.10 = 43,305.80 : x - Step 2: Convert to fraction form
113,376.20/170,129.10 = 43,305.80/x - Step 3: Cross multiply
113,376.20x = 170,129.10 × 43,305.80 - Step 4: Simplify right side
113,376.20x = 7,367,576,778.78 - Step 5: Solve for x
x = 7,367,576,778.78/113,376.20 - Step 6: Final answer
x = 64,983.45
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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.