Finding the Fourth Proportional to 126,452.68, 189,638.52 and 70,319.68
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Solution
The fourth proportional to 126,452.68, 189,638.52 and 70,319.68 is: 105,457.00
Step by Step Solution
- Step 1: Write the proportion equation
126,452.68 : 189,638.52 = 70,319.68 : x - Step 2: Convert to fraction form
126,452.68/189,638.52 = 70,319.68/x - Step 3: Cross multiply
126,452.68x = 189,638.52 × 70,319.68 - Step 4: Simplify right side
126,452.68x = 13,335,320,042.07 - Step 5: Solve for x
x = 13,335,320,042.07/126,452.68 - Step 6: Final answer
x = 105,457.00
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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.