Finding the Fourth Proportional to 103,841.30, 143,301.56 and 58,519.99
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Solution
The fourth proportional to 103,841.30, 143,301.56 and 58,519.99 is: 80,757.90
Step by Step Solution
- Step 1: Write the proportion equation
103,841.30 : 143,301.56 = 58,519.99 : x - Step 2: Convert to fraction form
103,841.30/143,301.56 = 58,519.99/x - Step 3: Cross multiply
103,841.30x = 143,301.56 × 58,519.99 - Step 4: Simplify right side
103,841.30x = 8,386,004,849.08 - Step 5: Solve for x
x = 8,386,004,849.08/103,841.30 - Step 6: Final answer
x = 80,757.90
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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.