Finding the Fourth Proportional to 126,052.26, 189,077.70 and 72,709.66
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Solution
The fourth proportional to 126,052.26, 189,077.70 and 72,709.66 is: 109,064.09
Step by Step Solution
- Step 1: Write the proportion equation
126,052.26 : 189,077.70 = 72,709.66 : x - Step 2: Convert to fraction form
126,052.26/189,077.70 = 72,709.66/x - Step 3: Cross multiply
126,052.26x = 189,077.70 × 72,709.66 - Step 4: Simplify right side
126,052.26x = 13,747,775,280.58 - Step 5: Solve for x
x = 13,747,775,280.58/126,052.26 - Step 6: Final answer
x = 109,064.09
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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.