Finding the Fourth Proportional to 135,918.30, 203,877.45 and 125,420.70
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Solution
The fourth proportional to 135,918.30, 203,877.45 and 125,420.70 is: 188,131.05
Step by Step Solution
- Step 1: Write the proportion equation
135,918.30 : 203,877.45 = 125,420.70 : x - Step 2: Convert to fraction form
135,918.30/203,877.45 = 125,420.70/x - Step 3: Cross multiply
135,918.30x = 203,877.45 × 125,420.70 - Step 4: Simplify right side
135,918.30x = 25,570,452,493.22 - Step 5: Solve for x
x = 25,570,452,493.22/135,918.30 - Step 6: Final answer
x = 188,131.05
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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.