Finding the Fourth Proportional to 100,232.26, 138,320.58 and 54,911.88
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Solution
The fourth proportional to 100,232.26, 138,320.58 and 54,911.88 is: 75,778.43
Step by Step Solution
- Step 1: Write the proportion equation
100,232.26 : 138,320.58 = 54,911.88 : x - Step 2: Convert to fraction form
100,232.26/138,320.58 = 54,911.88/x - Step 3: Cross multiply
100,232.26x = 138,320.58 × 54,911.88 - Step 4: Simplify right side
100,232.26x = 7,595,443,090.49 - Step 5: Solve for x
x = 7,595,443,090.49/100,232.26 - Step 6: Final answer
x = 75,778.43
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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.