Finding the Fourth Proportional to 128,060.70, 192,079.53 and 44,949.66
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Solution
The fourth proportional to 128,060.70, 192,079.53 and 44,949.66 is: 67,420.45
Step by Step Solution
- Step 1: Write the proportion equation
128,060.70 : 192,079.53 = 44,949.66 : x - Step 2: Convert to fraction form
128,060.70/192,079.53 = 44,949.66/x - Step 3: Cross multiply
128,060.70x = 192,079.53 × 44,949.66 - Step 4: Simplify right side
128,060.70x = 8,633,909,566.46 - Step 5: Solve for x
x = 8,633,909,566.46/128,060.70 - Step 6: Final answer
x = 67,420.45
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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.