Finding the Fourth Proportional to 126,014.88, 173,739.12 and 103,270.08
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Solution
The fourth proportional to 126,014.88, 173,739.12 and 103,270.08 is: 142,380.43
Step by Step Solution
- Step 1: Write the proportion equation
126,014.88 : 173,739.12 = 103,270.08 : x - Step 2: Convert to fraction form
126,014.88/173,739.12 = 103,270.08/x - Step 3: Cross multiply
126,014.88x = 173,739.12 × 103,270.08 - Step 4: Simplify right side
126,014.88x = 17,942,052,821.53 - Step 5: Solve for x
x = 17,942,052,821.53/126,014.88 - Step 6: Final answer
x = 142,380.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.