Finding the Fourth Proportional to 103,629.99, 155,444.63 and 28,749.99
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Solution
The fourth proportional to 103,629.99, 155,444.63 and 28,749.99 is: 43,124.89
Step by Step Solution
- Step 1: Write the proportion equation
103,629.99 : 155,444.63 = 28,749.99 : x - Step 2: Convert to fraction form
103,629.99/155,444.63 = 28,749.99/x - Step 3: Cross multiply
103,629.99x = 155,444.63 × 28,749.99 - Step 4: Simplify right side
103,629.99x = 4,469,031,414.30 - Step 5: Solve for x
x = 4,469,031,414.30/103,629.99 - Step 6: Final answer
x = 43,124.89
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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.