Finding the Fourth Proportional to 126,840.36, 175,039.26 and 73,125.12
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Solution
The fourth proportional to 126,840.36, 175,039.26 and 73,125.12 is: 100,912.41
Step by Step Solution
- Step 1: Write the proportion equation
126,840.36 : 175,039.26 = 73,125.12 : x - Step 2: Convert to fraction form
126,840.36/175,039.26 = 73,125.12/x - Step 3: Cross multiply
126,840.36x = 175,039.26 × 73,125.12 - Step 4: Simplify right side
126,840.36x = 12,799,766,892.21 - Step 5: Solve for x
x = 12,799,766,892.21/126,840.36 - Step 6: Final answer
x = 100,912.41
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1.5x scale
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.