Finding the Fourth Proportional to 134,081.20, 201,121.80 and 98,651.80
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Solution
The fourth proportional to 134,081.20, 201,121.80 and 98,651.80 is: 147,977.70
Step by Step Solution
- Step 1: Write the proportion equation
134,081.20 : 201,121.80 = 98,651.80 : x - Step 2: Convert to fraction form
134,081.20/201,121.80 = 98,651.80/x - Step 3: Cross multiply
134,081.20x = 201,121.80 × 98,651.80 - Step 4: Simplify right side
134,081.20x = 19,841,027,589.24 - Step 5: Solve for x
x = 19,841,027,589.24/134,081.20 - Step 6: Final answer
x = 147,977.70
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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.