Finding the Fourth Proportional to 146,775.60, 220,163.40 and 76,638.60
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Solution
The fourth proportional to 146,775.60, 220,163.40 and 76,638.60 is: 114,957.90
Step by Step Solution
- Step 1: Write the proportion equation
146,775.60 : 220,163.40 = 76,638.60 : x - Step 2: Convert to fraction form
146,775.60/220,163.40 = 76,638.60/x - Step 3: Cross multiply
146,775.60x = 220,163.40 × 76,638.60 - Step 4: Simplify right side
146,775.60x = 16,873,014,747.24 - Step 5: Solve for x
x = 16,873,014,747.24/146,775.60 - Step 6: Final answer
x = 114,957.90
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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.