Finding the Fourth Proportional to 156,917.25, 235,243.20 and 68,103.99
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Solution
The fourth proportional to 156,917.25, 235,243.20 and 68,103.99 is: 102,098.40
Step by Step Solution
- Step 1: Write the proportion equation
156,917.25 : 235,243.20 = 68,103.99 : x - Step 2: Convert to fraction form
156,917.25/235,243.20 = 68,103.99/x - Step 3: Cross multiply
156,917.25x = 235,243.20 × 68,103.99 - Step 4: Simplify right side
156,917.25x = 16,021,000,540.37 - Step 5: Solve for x
x = 16,021,000,540.37/156,917.25 - Step 6: Final answer
x = 102,098.40
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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.