Finding the Fourth Proportional to 115,422.21, 173,125.11 and 31,187.17
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Solution
The fourth proportional to 115,422.21, 173,125.11 and 31,187.17 is: 46,778.53
Step by Step Solution
- Step 1: Write the proportion equation
115,422.21 : 173,125.11 = 31,187.17 : x - Step 2: Convert to fraction form
115,422.21/173,125.11 = 31,187.17/x - Step 3: Cross multiply
115,422.21x = 173,125.11 × 31,187.17 - Step 4: Simplify right side
115,422.21x = 5,399,281,804.03 - Step 5: Solve for x
x = 5,399,281,804.03/115,422.21 - Step 6: Final answer
x = 46,778.53
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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.