Finding the Fourth Proportional to 111,140.88, 153,372.60 and 63,394.08
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Solution
The fourth proportional to 111,140.88, 153,372.60 and 63,394.08 is: 87,482.80
Step by Step Solution
- Step 1: Write the proportion equation
111,140.88 : 153,372.60 = 63,394.08 : x - Step 2: Convert to fraction form
111,140.88/153,372.60 = 63,394.08/x - Step 3: Cross multiply
111,140.88x = 153,372.60 × 63,394.08 - Step 4: Simplify right side
111,140.88x = 9,722,914,874.21 - Step 5: Solve for x
x = 9,722,914,874.21/111,140.88 - Step 6: Final answer
x = 87,482.80
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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.