Finding the Fourth Proportional to 111,280.74, 153,511.43 and 73,034.99
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Solution
The fourth proportional to 111,280.74, 153,511.43 and 73,034.99 is: 100,751.53
Step by Step Solution
- Step 1: Write the proportion equation
111,280.74 : 153,511.43 = 73,034.99 : x - Step 2: Convert to fraction form
111,280.74/153,511.43 = 73,034.99/x - Step 3: Cross multiply
111,280.74x = 153,511.43 × 73,034.99 - Step 4: Simplify right side
111,280.74x = 11,211,705,169.97 - Step 5: Solve for x
x = 11,211,705,169.97/111,280.74 - Step 6: Final answer
x = 100,751.53
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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.