Finding the Fourth Proportional to 125,489.80, 188,234.70 and 51,617.80
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Solution
The fourth proportional to 125,489.80, 188,234.70 and 51,617.80 is: 77,426.70
Step by Step Solution
- Step 1: Write the proportion equation
125,489.80 : 188,234.70 = 51,617.80 : x - Step 2: Convert to fraction form
125,489.80/188,234.70 = 51,617.80/x - Step 3: Cross multiply
125,489.80x = 188,234.70 × 51,617.80 - Step 4: Simplify right side
125,489.80x = 9,716,261,097.66 - Step 5: Solve for x
x = 9,716,261,097.66/125,489.80 - Step 6: Final answer
x = 77,426.70
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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.