Finding the Fourth Proportional to 189,840.26, 261,984.84 and 104,962.80
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Solution
The fourth proportional to 189,840.26, 261,984.84 and 104,962.80 is: 144,851.58
Step by Step Solution
- Step 1: Write the proportion equation
189,840.26 : 261,984.84 = 104,962.80 : x - Step 2: Convert to fraction form
189,840.26/261,984.84 = 104,962.80/x - Step 3: Cross multiply
189,840.26x = 261,984.84 × 104,962.80 - Step 4: Simplify right side
189,840.26x = 27,498,662,363.95 - Step 5: Solve for x
x = 27,498,662,363.95/189,840.26 - Step 6: Final answer
x = 144,851.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.