Finding the Fourth Proportional to 126,473.68, 189,733.56 and 43,349.20
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Solution
The fourth proportional to 126,473.68, 189,733.56 and 43,349.20 is: 65,031.70
Step by Step Solution
- Step 1: Write the proportion equation
126,473.68 : 189,733.56 = 43,349.20 : x - Step 2: Convert to fraction form
126,473.68/189,733.56 = 43,349.20/x - Step 3: Cross multiply
126,473.68x = 189,733.56 × 43,349.20 - Step 4: Simplify right side
126,473.68x = 8,224,798,039.15 - Step 5: Solve for x
x = 8,224,798,039.15/126,473.68 - Step 6: Final answer
x = 65,031.70
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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.