Finding the Fourth Proportional to 136,731.24, 204,801.60 and 133,385.13
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Solution
The fourth proportional to 136,731.24, 204,801.60 and 133,385.13 is: 199,789.66
Step by Step Solution
- Step 1: Write the proportion equation
136,731.24 : 204,801.60 = 133,385.13 : x - Step 2: Convert to fraction form
136,731.24/204,801.60 = 133,385.13/x - Step 3: Cross multiply
136,731.24x = 204,801.60 × 133,385.13 - Step 4: Simplify right side
136,731.24x = 27,317,488,040.21 - Step 5: Solve for x
x = 27,317,488,040.21/136,731.24 - Step 6: Final answer
x = 199,789.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.