Finding the Fourth Proportional to 128,894.66, 193,295.85 and 44,632.19
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Solution
The fourth proportional to 128,894.66, 193,295.85 and 44,632.19 is: 66,932.31
Step by Step Solution
- Step 1: Write the proportion equation
128,894.66 : 193,295.85 = 44,632.19 : x - Step 2: Convert to fraction form
128,894.66/193,295.85 = 44,632.19/x - Step 3: Cross multiply
128,894.66x = 193,295.85 × 44,632.19 - Step 4: Simplify right side
128,894.66x = 8,627,217,103.41 - Step 5: Solve for x
x = 8,627,217,103.41/128,894.66 - Step 6: Final answer
x = 66,932.31
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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.