Finding the Fourth Proportional to 143,907.36, 198,577.68 and 80,239.20
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Solution
The fourth proportional to 143,907.36, 198,577.68 and 80,239.20 is: 110,722.02
Step by Step Solution
- Step 1: Write the proportion equation
143,907.36 : 198,577.68 = 80,239.20 : x - Step 2: Convert to fraction form
143,907.36/198,577.68 = 80,239.20/x - Step 3: Cross multiply
143,907.36x = 198,577.68 × 80,239.20 - Step 4: Simplify right side
143,907.36x = 15,933,714,181.06 - Step 5: Solve for x
x = 15,933,714,181.06/143,907.36 - Step 6: Final answer
x = 110,722.02
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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.