Finding the Fourth Proportional to 118,249.20, 177,373.80 and 85,201.20
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Solution
The fourth proportional to 118,249.20, 177,373.80 and 85,201.20 is: 127,801.80
Step by Step Solution
- Step 1: Write the proportion equation
118,249.20 : 177,373.80 = 85,201.20 : x - Step 2: Convert to fraction form
118,249.20/177,373.80 = 85,201.20/x - Step 3: Cross multiply
118,249.20x = 177,373.80 × 85,201.20 - Step 4: Simplify right side
118,249.20x = 15,112,460,608.56 - Step 5: Solve for x
x = 15,112,460,608.56/118,249.20 - Step 6: Final answer
x = 127,801.80
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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.