Finding the Fourth Proportional to 128,059.95, 192,078.41 and 44,948.91
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Solution
The fourth proportional to 128,059.95, 192,078.41 and 44,948.91 is: 67,419.32
Step by Step Solution
- Step 1: Write the proportion equation
128,059.95 : 192,078.41 = 44,948.91 : x - Step 2: Convert to fraction form
128,059.95/192,078.41 = 44,948.91/x - Step 3: Cross multiply
128,059.95x = 192,078.41 × 44,948.91 - Step 4: Simplify right side
128,059.95x = 8,633,714,939.29 - Step 5: Solve for x
x = 8,633,714,939.29/128,059.95 - Step 6: Final answer
x = 67,419.32
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1.5x scale
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.