Finding the Fourth Proportional to 126,029.03, 189,047.19 and 47,128.19
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Solution
The fourth proportional to 126,029.03, 189,047.19 and 47,128.19 is: 70,693.65
Step by Step Solution
- Step 1: Write the proportion equation
126,029.03 : 189,047.19 = 47,128.19 : x - Step 2: Convert to fraction form
126,029.03/189,047.19 = 47,128.19/x - Step 3: Cross multiply
126,029.03x = 189,047.19 × 47,128.19 - Step 4: Simplify right side
126,029.03x = 8,909,451,889.29 - Step 5: Solve for x
x = 8,909,451,889.29/126,029.03 - Step 6: Final answer
x = 70,693.65
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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.