Finding the Fourth Proportional to 103,911.48, 143,394.96 and 58,589.06
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Solution
The fourth proportional to 103,911.48, 143,394.96 and 58,589.06 is: 80,851.28
Step by Step Solution
- Step 1: Write the proportion equation
103,911.48 : 143,394.96 = 58,589.06 : x - Step 2: Convert to fraction form
103,911.48/143,394.96 = 58,589.06/x - Step 3: Cross multiply
103,911.48x = 143,394.96 × 58,589.06 - Step 4: Simplify right side
103,911.48x = 8,401,375,915.14 - Step 5: Solve for x
x = 8,401,375,915.14/103,911.48 - Step 6: Final answer
x = 80,851.28
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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.