Finding the Fourth Proportional to 111,559.36, 153,925.44 and 63,161.92
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Solution
The fourth proportional to 111,559.36, 153,925.44 and 63,161.92 is: 87,148.46
Step by Step Solution
- Step 1: Write the proportion equation
111,559.36 : 153,925.44 = 63,161.92 : x - Step 2: Convert to fraction form
111,559.36/153,925.44 = 63,161.92/x - Step 3: Cross multiply
111,559.36x = 153,925.44 × 63,161.92 - Step 4: Simplify right side
111,559.36x = 9,722,226,327.24 - Step 5: Solve for x
x = 9,722,226,327.24/111,559.36 - Step 6: Final answer
x = 87,148.46
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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.