Finding the Fourth Proportional to 126,631.68, 189,893.52 and 37,883.76
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Solution
The fourth proportional to 126,631.68, 189,893.52 and 37,883.76 is: 56,809.49
Step by Step Solution
- Step 1: Write the proportion equation
126,631.68 : 189,893.52 = 37,883.76 : x - Step 2: Convert to fraction form
126,631.68/189,893.52 = 37,883.76/x - Step 3: Cross multiply
126,631.68x = 189,893.52 × 37,883.76 - Step 4: Simplify right side
126,631.68x = 7,193,880,537.24 - Step 5: Solve for x
x = 7,193,880,537.24/126,631.68 - Step 6: Final answer
x = 56,809.49
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1.5x scale
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.