Finding the Fourth Proportional to 125,939.28, 187,926.60 and 114,761.28
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Solution
The fourth proportional to 125,939.28, 187,926.60 and 114,761.28 is: 171,246.79
Step by Step Solution
- Step 1: Write the proportion equation
125,939.28 : 187,926.60 = 114,761.28 : x - Step 2: Convert to fraction form
125,939.28/187,926.60 = 114,761.28/x - Step 3: Cross multiply
125,939.28x = 187,926.60 × 114,761.28 - Step 4: Simplify right side
125,939.28x = 21,566,697,162.05 - Step 5: Solve for x
x = 21,566,697,162.05/125,939.28 - Step 6: Final answer
x = 171,246.79
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.