Finding the Fourth Proportional to 168,958.20, 253,437.30 and 106,903.80
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Solution
The fourth proportional to 168,958.20, 253,437.30 and 106,903.80 is: 160,355.70
Step by Step Solution
- Step 1: Write the proportion equation
168,958.20 : 253,437.30 = 106,903.80 : x - Step 2: Convert to fraction form
168,958.20/253,437.30 = 106,903.80/x - Step 3: Cross multiply
168,958.20x = 253,437.30 × 106,903.80 - Step 4: Simplify right side
168,958.20x = 27,093,410,431.74 - Step 5: Solve for x
x = 27,093,410,431.74/168,958.20 - Step 6: Final answer
x = 160,355.70
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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.