Finding the Fourth Proportional to 128,029.80, 192,044.70 and 96,925.80
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Solution
The fourth proportional to 128,029.80, 192,044.70 and 96,925.80 is: 145,388.70
Step by Step Solution
- Step 1: Write the proportion equation
128,029.80 : 192,044.70 = 96,925.80 : x - Step 2: Convert to fraction form
128,029.80/192,044.70 = 96,925.80/x - Step 3: Cross multiply
128,029.80x = 192,044.70 × 96,925.80 - Step 4: Simplify right side
128,029.80x = 18,614,086,183.26 - Step 5: Solve for x
x = 18,614,086,183.26/128,029.80 - Step 6: Final answer
x = 145,388.70
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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.