Finding the Fourth Proportional to 135,791.28, 203,686.20 and 73,855.44
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Solution
The fourth proportional to 135,791.28, 203,686.20 and 73,855.44 is: 110,782.77
Step by Step Solution
- Step 1: Write the proportion equation
135,791.28 : 203,686.20 = 73,855.44 : x - Step 2: Convert to fraction form
135,791.28/203,686.20 = 73,855.44/x - Step 3: Cross multiply
135,791.28x = 203,686.20 × 73,855.44 - Step 4: Simplify right side
135,791.28x = 15,043,333,922.93 - Step 5: Solve for x
x = 15,043,333,922.93/135,791.28 - Step 6: Final answer
x = 110,782.77
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1.5x scale
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.