Finding the Fourth Proportional to 125,079.84, 187,639.20 and 41,993.28
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Solution
The fourth proportional to 125,079.84, 187,639.20 and 41,993.28 is: 62,996.45
Step by Step Solution
- Step 1: Write the proportion equation
125,079.84 : 187,639.20 = 41,993.28 : x - Step 2: Convert to fraction form
125,079.84/187,639.20 = 41,993.28/x - Step 3: Cross multiply
125,079.84x = 187,639.20 × 41,993.28 - Step 4: Simplify right side
125,079.84x = 7,879,585,464.58 - Step 5: Solve for x
x = 7,879,585,464.58/125,079.84 - Step 6: Final answer
x = 62,996.45
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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.