Finding the Fourth Proportional to 125,305.13, 187,992.41 and 57,857.76
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Solution
The fourth proportional to 125,305.13, 187,992.41 and 57,857.76 is: 86,802.67
Step by Step Solution
- Step 1: Write the proportion equation
125,305.13 : 187,992.41 = 57,857.76 : x - Step 2: Convert to fraction form
125,305.13/187,992.41 = 57,857.76/x - Step 3: Cross multiply
125,305.13x = 187,992.41 × 57,857.76 - Step 4: Simplify right side
125,305.13x = 10,876,819,450.31 - Step 5: Solve for x
x = 10,876,819,450.31/125,305.13 - Step 6: Final answer
x = 86,802.67
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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.