Finding the Fourth Proportional to 133,266.28, 183,877.12 and 79,568.68
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Solution
The fourth proportional to 133,266.28, 183,877.12 and 79,568.68 is: 109,786.66
Step by Step Solution
- Step 1: Write the proportion equation
133,266.28 : 183,877.12 = 79,568.68 : x - Step 2: Convert to fraction form
133,266.28/183,877.12 = 79,568.68/x - Step 3: Cross multiply
133,266.28x = 183,877.12 × 79,568.68 - Step 4: Simplify right side
133,266.28x = 14,630,859,720.60 - Step 5: Solve for x
x = 14,630,859,720.60/133,266.28 - Step 6: Final answer
x = 109,786.66
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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.