Finding the Fourth Proportional to 126,358.26, 189,538.01 and 51,479.13
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Solution
The fourth proportional to 126,358.26, 189,538.01 and 51,479.13 is: 77,218.95
Step by Step Solution
- Step 1: Write the proportion equation
126,358.26 : 189,538.01 = 51,479.13 : x - Step 2: Convert to fraction form
126,358.26/189,538.01 = 51,479.13/x - Step 3: Cross multiply
126,358.26x = 189,538.01 × 51,479.13 - Step 4: Simplify right side
126,358.26x = 9,757,251,599.34 - Step 5: Solve for x
x = 9,757,251,599.34/126,358.26 - Step 6: Final answer
x = 77,218.95
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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.