Finding the Fourth Proportional to 143,023.13, 214,451.62 and 54,228.20
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Solution
The fourth proportional to 143,023.13, 214,451.62 and 54,228.20 is: 81,310.80
Step by Step Solution
- Step 1: Write the proportion equation
143,023.13 : 214,451.62 = 54,228.20 : x - Step 2: Convert to fraction form
143,023.13/214,451.62 = 54,228.20/x - Step 3: Cross multiply
143,023.13x = 214,451.62 × 54,228.20 - Step 4: Simplify right side
143,023.13x = 11,629,325,740.24 - Step 5: Solve for x
x = 11,629,325,740.24/143,023.13 - Step 6: Final answer
x = 81,310.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.