Finding the Fourth Proportional to 126,767.13, 174,977.55 and 73,087.98
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Solution
The fourth proportional to 126,767.13, 174,977.55 and 73,087.98 is: 100,883.85
Step by Step Solution
- Step 1: Write the proportion equation
126,767.13 : 174,977.55 = 73,087.98 : x - Step 2: Convert to fraction form
126,767.13/174,977.55 = 73,087.98/x - Step 3: Cross multiply
126,767.13x = 174,977.55 × 73,087.98 - Step 4: Simplify right side
126,767.13x = 12,788,755,674.85 - Step 5: Solve for x
x = 12,788,755,674.85/126,767.13 - Step 6: Final answer
x = 100,883.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.