Finding the Fourth Proportional to 111,452.80, 153,804.84 and 63,707.17
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Solution
The fourth proportional to 111,452.80, 153,804.84 and 63,707.17 is: 87,915.88
Step by Step Solution
- Step 1: Write the proportion equation
111,452.80 : 153,804.84 = 63,707.17 : x - Step 2: Convert to fraction form
111,452.80/153,804.84 = 63,707.17/x - Step 3: Cross multiply
111,452.80x = 153,804.84 × 63,707.17 - Step 4: Simplify right side
111,452.80x = 9,798,470,704.19 - Step 5: Solve for x
x = 9,798,470,704.19/111,452.80 - Step 6: Final answer
x = 87,915.88
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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.