Finding the Fourth Proportional to 135,739.38, 203,721.04 and 68,290.46
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Solution
The fourth proportional to 135,739.38, 203,721.04 and 68,290.46 is: 102,492.02
Step by Step Solution
- Step 1: Write the proportion equation
135,739.38 : 203,721.04 = 68,290.46 : x - Step 2: Convert to fraction form
135,739.38/203,721.04 = 68,290.46/x - Step 3: Cross multiply
135,739.38x = 203,721.04 × 68,290.46 - Step 4: Simplify right side
135,739.38x = 13,912,203,533.28 - Step 5: Solve for x
x = 13,912,203,533.28/135,739.38 - Step 6: Final answer
x = 102,492.02
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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.