Finding the Fourth Proportional to 103,630.53, 155,445.78 and 28,750.68
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Solution
The fourth proportional to 103,630.53, 155,445.78 and 28,750.68 is: 43,126.02
Step by Step Solution
- Step 1: Write the proportion equation
103,630.53 : 155,445.78 = 28,750.68 : x - Step 2: Convert to fraction form
103,630.53/155,445.78 = 28,750.68/x - Step 3: Cross multiply
103,630.53x = 155,445.78 × 28,750.68 - Step 4: Simplify right side
103,630.53x = 4,469,171,878.13 - Step 5: Solve for x
x = 4,469,171,878.13/103,630.53 - Step 6: Final answer
x = 43,126.02
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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.