Finding the Fourth Proportional to 135,360.75, 186,735.78 and 87,629.49
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Solution
The fourth proportional to 135,360.75, 186,735.78 and 87,629.49 is: 120,888.52
Step by Step Solution
- Step 1: Write the proportion equation
135,360.75 : 186,735.78 = 87,629.49 : x - Step 2: Convert to fraction form
135,360.75/186,735.78 = 87,629.49/x - Step 3: Cross multiply
135,360.75x = 186,735.78 × 87,629.49 - Step 4: Simplify right side
135,360.75x = 16,363,561,166.15 - Step 5: Solve for x
x = 16,363,561,166.15/135,360.75 - Step 6: Final answer
x = 120,888.52
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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.