Finding the Fourth Proportional to 103,544.13, 155,316.41 and 28,664.49
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Solution
The fourth proportional to 103,544.13, 155,316.41 and 28,664.49 is: 42,996.79
Step by Step Solution
- Step 1: Write the proportion equation
103,544.13 : 155,316.41 = 28,664.49 : x - Step 2: Convert to fraction form
103,544.13/155,316.41 = 28,664.49/x - Step 3: Cross multiply
103,544.13x = 155,316.41 × 28,664.49 - Step 4: Simplify right side
103,544.13x = 4,452,065,537.96 - Step 5: Solve for x
x = 4,452,065,537.96/103,544.13 - Step 6: Final answer
x = 42,996.79
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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.