Finding the Fourth Proportional to 138,475.23, 207,734.67 and 48,542.73
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Solution
The fourth proportional to 138,475.23, 207,734.67 and 48,542.73 is: 72,821.75
Step by Step Solution
- Step 1: Write the proportion equation
138,475.23 : 207,734.67 = 48,542.73 : x - Step 2: Convert to fraction form
138,475.23/207,734.67 = 48,542.73/x - Step 3: Cross multiply
138,475.23x = 207,734.67 × 48,542.73 - Step 4: Simplify right side
138,475.23x = 10,084,007,997.45 - Step 5: Solve for x
x = 10,084,007,997.45/138,475.23 - Step 6: Final answer
x = 72,821.75
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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.