Finding the Fourth Proportional to 190,589.13, 263,006.28 and 105,714.09
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Solution
The fourth proportional to 190,589.13, 263,006.28 and 105,714.09 is: 145,881.72
Step by Step Solution
- Step 1: Write the proportion equation
190,589.13 : 263,006.28 = 105,714.09 : x - Step 2: Convert to fraction form
190,589.13/263,006.28 = 105,714.09/x - Step 3: Cross multiply
190,589.13x = 263,006.28 × 105,714.09 - Step 4: Simplify right side
190,589.13x = 27,803,469,554.49 - Step 5: Solve for x
x = 27,803,469,554.49/190,589.13 - Step 6: Final answer
x = 145,881.72
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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.