Finding the Fourth Proportional to 103,857.86, 155,786.80 and 24,972.08
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Solution
The fourth proportional to 103,857.86, 155,786.80 and 24,972.08 is: 37,458.12
Step by Step Solution
- Step 1: Write the proportion equation
103,857.86 : 155,786.80 = 24,972.08 : x - Step 2: Convert to fraction form
103,857.86/155,786.80 = 24,972.08/x - Step 3: Cross multiply
103,857.86x = 155,786.80 × 24,972.08 - Step 4: Simplify right side
103,857.86x = 3,890,320,432.54 - Step 5: Solve for x
x = 3,890,320,432.54/103,857.86 - Step 6: Final answer
x = 37,458.12
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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.