Finding the Fourth Proportional to 121,743.38, 168,002.64 and 68,028.84
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Solution
The fourth proportional to 121,743.38, 168,002.64 and 68,028.84 is: 93,877.99
Step by Step Solution
- Step 1: Write the proportion equation
121,743.38 : 168,002.64 = 68,028.84 : x - Step 2: Convert to fraction form
121,743.38/168,002.64 = 68,028.84/x - Step 3: Cross multiply
121,743.38x = 168,002.64 × 68,028.84 - Step 4: Simplify right side
121,743.38x = 11,429,023,791.09 - Step 5: Solve for x
x = 11,429,023,791.09/121,743.38 - Step 6: Final answer
x = 93,877.99
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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.