Finding the Fourth Proportional to 103,930.29, 155,846.97 and 53,996.96
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Solution
The fourth proportional to 103,930.29, 155,846.97 and 53,996.96 is: 80,970.26
Step by Step Solution
- Step 1: Write the proportion equation
103,930.29 : 155,846.97 = 53,996.96 : x - Step 2: Convert to fraction form
103,930.29/155,846.97 = 53,996.96/x - Step 3: Cross multiply
103,930.29x = 155,846.97 × 53,996.96 - Step 4: Simplify right side
103,930.29x = 8,415,262,994.83 - Step 5: Solve for x
x = 8,415,262,994.83/103,930.29 - Step 6: Final answer
x = 80,970.26
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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.