Finding the Fourth Proportional to 156,841.40, 235,129.84 and 68,028.01
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Solution
The fourth proportional to 156,841.40, 235,129.84 and 68,028.01 is: 101,984.64
Step by Step Solution
- Step 1: Write the proportion equation
156,841.40 : 235,129.84 = 68,028.01 : x - Step 2: Convert to fraction form
156,841.40/235,129.84 = 68,028.01/x - Step 3: Cross multiply
156,841.40x = 235,129.84 × 68,028.01 - Step 4: Simplify right side
156,841.40x = 15,995,414,348.92 - Step 5: Solve for x
x = 15,995,414,348.92/156,841.40 - Step 6: Final answer
x = 101,984.64
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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.