Finding the Fourth Proportional to 143,134.56, 214,729.11 and 57,752.19
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Solution
The fourth proportional to 143,134.56, 214,729.11 and 57,752.19 is: 86,639.29
Step by Step Solution
- Step 1: Write the proportion equation
143,134.56 : 214,729.11 = 57,752.19 : x - Step 2: Convert to fraction form
143,134.56/214,729.11 = 57,752.19/x - Step 3: Cross multiply
143,134.56x = 214,729.11 × 57,752.19 - Step 4: Simplify right side
143,134.56x = 12,401,076,359.25 - Step 5: Solve for x
x = 12,401,076,359.25/143,134.56 - Step 6: Final answer
x = 86,639.29
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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.