Finding the Fourth Proportional to 134,491.60, 201,445.80 and 87,252.40
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Solution
The fourth proportional to 134,491.60, 201,445.80 and 87,252.40 is: 130,689.42
Step by Step Solution
- Step 1: Write the proportion equation
134,491.60 : 201,445.80 = 87,252.40 : x - Step 2: Convert to fraction form
134,491.60/201,445.80 = 87,252.40/x - Step 3: Cross multiply
134,491.60x = 201,445.80 × 87,252.40 - Step 4: Simplify right side
134,491.60x = 17,576,629,519.92 - Step 5: Solve for x
x = 17,576,629,519.92/134,491.60 - Step 6: Final answer
x = 130,689.42
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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.