Finding the Fourth Proportional to 140,915.28, 194,457.93 and 77,251.68
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Solution
The fourth proportional to 140,915.28, 194,457.93 and 77,251.68 is: 106,604.49
Step by Step Solution
- Step 1: Write the proportion equation
140,915.28 : 194,457.93 = 77,251.68 : x - Step 2: Convert to fraction form
140,915.28/194,457.93 = 77,251.68/x - Step 3: Cross multiply
140,915.28x = 194,457.93 × 77,251.68 - Step 4: Simplify right side
140,915.28x = 15,022,201,781.82 - Step 5: Solve for x
x = 15,022,201,781.82/140,915.28 - Step 6: Final answer
x = 106,604.49
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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.