Finding the Fourth Proportional to 103,879.05, 155,660.01 and 61,676.02
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Solution
The fourth proportional to 103,879.05, 155,660.01 and 61,676.02 is: 92,419.89
Step by Step Solution
- Step 1: Write the proportion equation
103,879.05 : 155,660.01 = 61,676.02 : x - Step 2: Convert to fraction form
103,879.05/155,660.01 = 61,676.02/x - Step 3: Cross multiply
103,879.05x = 155,660.01 × 61,676.02 - Step 4: Simplify right side
103,879.05x = 9,600,489,889.96 - Step 5: Solve for x
x = 9,600,489,889.96/103,879.05 - Step 6: Final answer
x = 92,419.89
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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.