Finding the Fourth Proportional to 103,673.12, 155,490.84 and 28,774.44
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Solution
The fourth proportional to 103,673.12, 155,490.84 and 28,774.44 is: 43,156.43
Step by Step Solution
- Step 1: Write the proportion equation
103,673.12 : 155,490.84 = 28,774.44 : x - Step 2: Convert to fraction form
103,673.12/155,490.84 = 28,774.44/x - Step 3: Cross multiply
103,673.12x = 155,490.84 × 28,774.44 - Step 4: Simplify right side
103,673.12x = 4,474,161,846.13 - Step 5: Solve for x
x = 4,474,161,846.13/103,673.12 - Step 6: Final answer
x = 43,156.43
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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.