Finding the Fourth Proportional to 119,661.21, 165,140.26 and 68,690.44
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Solution
The fourth proportional to 119,661.21, 165,140.26 and 68,690.44 is: 94,797.27
Step by Step Solution
- Step 1: Write the proportion equation
119,661.21 : 165,140.26 = 68,690.44 : x - Step 2: Convert to fraction form
119,661.21/165,140.26 = 68,690.44/x - Step 3: Cross multiply
119,661.21x = 165,140.26 × 68,690.44 - Step 4: Simplify right side
119,661.21x = 11,343,556,536.54 - Step 5: Solve for x
x = 11,343,556,536.54/119,661.21 - Step 6: Final answer
x = 94,797.27
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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.