Finding the Fourth Proportional to 126,202.89, 189,249.08 and 47,261.75
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Solution
The fourth proportional to 126,202.89, 189,249.08 and 47,261.75 is: 70,871.94
Step by Step Solution
- Step 1: Write the proportion equation
126,202.89 : 189,249.08 = 47,261.75 : x - Step 2: Convert to fraction form
126,202.89/189,249.08 = 47,261.75/x - Step 3: Cross multiply
126,202.89x = 189,249.08 × 47,261.75 - Step 4: Simplify right side
126,202.89x = 8,944,243,519.70 - Step 5: Solve for x
x = 8,944,243,519.70/126,202.89 - Step 6: Final answer
x = 70,871.94
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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.