Finding the Fourth Proportional to 100,338.08, 138,464.52 and 55,626.08
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Solution
The fourth proportional to 100,338.08, 138,464.52 and 55,626.08 is: 76,762.86
Step by Step Solution
- Step 1: Write the proportion equation
100,338.08 : 138,464.52 = 55,626.08 : x - Step 2: Convert to fraction form
100,338.08/138,464.52 = 55,626.08/x - Step 3: Cross multiply
100,338.08x = 138,464.52 × 55,626.08 - Step 4: Simplify right side
100,338.08x = 7,702,238,466.68 - Step 5: Solve for x
x = 7,702,238,466.68/100,338.08 - Step 6: Final answer
x = 76,762.86
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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.