Finding the Fourth Proportional to 135,672.49, 203,480.86 and 51,403.60
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Solution
The fourth proportional to 135,672.49, 203,480.86 and 51,403.60 is: 77,094.84
Step by Step Solution
- Step 1: Write the proportion equation
135,672.49 : 203,480.86 = 51,403.60 : x - Step 2: Convert to fraction form
135,672.49/203,480.86 = 51,403.60/x - Step 3: Cross multiply
135,672.49x = 203,480.86 × 51,403.60 - Step 4: Simplify right side
135,672.49x = 10,459,648,735.10 - Step 5: Solve for x
x = 10,459,648,735.10/135,672.49 - Step 6: Final answer
x = 77,094.84
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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.