Finding the Fourth Proportional to 134,511.20, 201,718.20 and 54,515.60
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Solution
The fourth proportional to 134,511.20, 201,718.20 and 54,515.60 is: 81,753.70
Step by Step Solution
- Step 1: Write the proportion equation
134,511.20 : 201,718.20 = 54,515.60 : x - Step 2: Convert to fraction form
134,511.20/201,718.20 = 54,515.60/x - Step 3: Cross multiply
134,511.20x = 201,718.20 × 54,515.60 - Step 4: Simplify right side
134,511.20x = 10,996,788,703.92 - Step 5: Solve for x
x = 10,996,788,703.92/134,511.20 - Step 6: Final answer
x = 81,753.70
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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.