Finding the Fourth Proportional to 103,422.70, 155,134.11 and 29,550.70
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Solution
The fourth proportional to 103,422.70, 155,134.11 and 29,550.70 is: 44,326.07
Step by Step Solution
- Step 1: Write the proportion equation
103,422.70 : 155,134.11 = 29,550.70 : x - Step 2: Convert to fraction form
103,422.70/155,134.11 = 29,550.70/x - Step 3: Cross multiply
103,422.70x = 155,134.11 × 29,550.70 - Step 4: Simplify right side
103,422.70x = 4,584,321,544.38 - Step 5: Solve for x
x = 4,584,321,544.38/103,422.70 - Step 6: Final answer
x = 44,326.07
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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.