Finding the Fourth Proportional to 102,735.36, 141,739.44 and 75,934.08
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Solution
The fourth proportional to 102,735.36, 141,739.44 and 75,934.08 is: 104,762.90
Step by Step Solution
- Step 1: Write the proportion equation
102,735.36 : 141,739.44 = 75,934.08 : x - Step 2: Convert to fraction form
102,735.36/141,739.44 = 75,934.08/x - Step 3: Cross multiply
102,735.36x = 141,739.44 × 75,934.08 - Step 4: Simplify right side
102,735.36x = 10,762,853,976.12 - Step 5: Solve for x
x = 10,762,853,976.12/102,735.36 - Step 6: Final answer
x = 104,762.90
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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.