Finding the Fourth Proportional to 140,883.68, 194,424.84 and 80,454.80
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Solution
The fourth proportional to 140,883.68, 194,424.84 and 80,454.80 is: 111,030.69
Step by Step Solution
- Step 1: Write the proportion equation
140,883.68 : 194,424.84 = 80,454.80 : x - Step 2: Convert to fraction form
140,883.68/194,424.84 = 80,454.80/x - Step 3: Cross multiply
140,883.68x = 194,424.84 × 80,454.80 - Step 4: Simplify right side
140,883.68x = 15,642,411,617.23 - Step 5: Solve for x
x = 15,642,411,617.23/140,883.68 - Step 6: Final answer
x = 111,030.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.