Finding the Fourth Proportional to 126,121.26, 189,209.58 and 37,381.74
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Solution
The fourth proportional to 126,121.26, 189,209.58 and 37,381.74 is: 56,080.82
Step by Step Solution
- Step 1: Write the proportion equation
126,121.26 : 189,209.58 = 37,381.74 : x - Step 2: Convert to fraction form
126,121.26/189,209.58 = 37,381.74/x - Step 3: Cross multiply
126,121.26x = 189,209.58 × 37,381.74 - Step 4: Simplify right side
126,121.26x = 7,072,983,325.07 - Step 5: Solve for x
x = 7,072,983,325.07/126,121.26 - Step 6: Final answer
x = 56,080.82
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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.