Finding the Fourth Proportional to 159,794.28, 220,515.62 and 88,173.68
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Solution
The fourth proportional to 159,794.28, 220,515.62 and 88,173.68 is: 121,679.40
Step by Step Solution
- Step 1: Write the proportion equation
159,794.28 : 220,515.62 = 88,173.68 : x - Step 2: Convert to fraction form
159,794.28/220,515.62 = 88,173.68/x - Step 3: Cross multiply
159,794.28x = 220,515.62 × 88,173.68 - Step 4: Simplify right side
159,794.28x = 19,443,672,169.44 - Step 5: Solve for x
x = 19,443,672,169.44/159,794.28 - Step 6: Final answer
x = 121,679.40
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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.