Finding the Fourth Proportional to 126,000.70, 178,501.09 and 126,000.70
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Solution
The fourth proportional to 126,000.70, 178,501.09 and 126,000.70 is: 178,501.09
Step by Step Solution
- Step 1: Write the proportion equation
126,000.70 : 178,501.09 = 126,000.70 : x - Step 2: Convert to fraction form
126,000.70/178,501.09 = 126,000.70/x - Step 3: Cross multiply
126,000.70x = 178,501.09 × 126,000.70 - Step 4: Simplify right side
126,000.70x = 22,491,262,290.76 - Step 5: Solve for x
x = 22,491,262,290.76/126,000.70 - Step 6: Final answer
x = 178,501.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.