Finding the Fourth Proportional to 125,636.21, 188,370.99 and 45,664.68
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Solution
The fourth proportional to 125,636.21, 188,370.99 and 45,664.68 is: 68,466.74
Step by Step Solution
- Step 1: Write the proportion equation
125,636.21 : 188,370.99 = 45,664.68 : x - Step 2: Convert to fraction form
125,636.21/188,370.99 = 45,664.68/x - Step 3: Cross multiply
125,636.21x = 188,370.99 × 45,664.68 - Step 4: Simplify right side
125,636.21x = 8,601,900,979.63 - Step 5: Solve for x
x = 8,601,900,979.63/125,636.21 - Step 6: Final answer
x = 68,466.74
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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.