Finding the Fourth Proportional to 126,448.20, 189,765.84 and 59,888.44
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Solution
The fourth proportional to 126,448.20, 189,765.84 and 59,888.44 is: 89,876.96
Step by Step Solution
- Step 1: Write the proportion equation
126,448.20 : 189,765.84 = 59,888.44 : x - Step 2: Convert to fraction form
126,448.20/189,765.84 = 59,888.44/x - Step 3: Cross multiply
126,448.20x = 189,765.84 × 59,888.44 - Step 4: Simplify right side
126,448.20x = 11,364,780,122.89 - Step 5: Solve for x
x = 11,364,780,122.89/126,448.20 - Step 6: Final answer
x = 89,876.96
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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.