Finding the Fourth Proportional to 126,508.88, 189,756.84 and 37,763.12
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Solution
The fourth proportional to 126,508.88, 189,756.84 and 37,763.12 is: 56,642.75
Step by Step Solution
- Step 1: Write the proportion equation
126,508.88 : 189,756.84 = 37,763.12 : x - Step 2: Convert to fraction form
126,508.88/189,756.84 = 37,763.12/x - Step 3: Cross multiply
126,508.88x = 189,756.84 × 37,763.12 - Step 4: Simplify right side
126,508.88x = 7,165,810,319.74 - Step 5: Solve for x
x = 7,165,810,319.74/126,508.88 - Step 6: Final answer
x = 56,642.75
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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.