Finding the Fourth Proportional to 138,801.70, 208,204.25 and 48,847.09
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Solution
The fourth proportional to 138,801.70, 208,204.25 and 48,847.09 is: 73,271.23
Step by Step Solution
- Step 1: Write the proportion equation
138,801.70 : 208,204.25 = 48,847.09 : x - Step 2: Convert to fraction form
138,801.70/208,204.25 = 48,847.09/x - Step 3: Cross multiply
138,801.70x = 208,204.25 × 48,847.09 - Step 4: Simplify right side
138,801.70x = 10,170,171,738.13 - Step 5: Solve for x
x = 10,170,171,738.13/138,801.70 - Step 6: Final answer
x = 73,271.23
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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.