Finding the Fourth Proportional to 126,589.74, 174,535.06 and 81,187.62
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Solution
The fourth proportional to 126,589.74, 174,535.06 and 81,187.62 is: 111,937.08
Step by Step Solution
- Step 1: Write the proportion equation
126,589.74 : 174,535.06 = 81,187.62 : x - Step 2: Convert to fraction form
126,589.74/174,535.06 = 81,187.62/x - Step 3: Cross multiply
126,589.74x = 174,535.06 × 81,187.62 - Step 4: Simplify right side
126,589.74x = 14,170,086,127.96 - Step 5: Solve for x
x = 14,170,086,127.96/126,589.74 - Step 6: Final answer
x = 111,937.08
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1.5x scale
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.