Finding the Fourth Proportional to 136,285.69, 204,455.28 and 47,542.09
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Solution
The fourth proportional to 136,285.69, 204,455.28 and 47,542.09 is: 71,322.46
Step by Step Solution
- Step 1: Write the proportion equation
136,285.69 : 204,455.28 = 47,542.09 : x - Step 2: Convert to fraction form
136,285.69/204,455.28 = 47,542.09/x - Step 3: Cross multiply
136,285.69x = 204,455.28 × 47,542.09 - Step 4: Simplify right side
136,285.69x = 9,720,231,322.74 - Step 5: Solve for x
x = 9,720,231,322.74/136,285.69 - Step 6: Final answer
x = 71,322.46
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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.