Finding the Fourth Proportional to 134,107.70, 201,291.15 and 81,619.70
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Solution
The fourth proportional to 134,107.70, 201,291.15 and 81,619.70 is: 122,508.43
Step by Step Solution
- Step 1: Write the proportion equation
134,107.70 : 201,291.15 = 81,619.70 : x - Step 2: Convert to fraction form
134,107.70/201,291.15 = 81,619.70/x - Step 3: Cross multiply
134,107.70x = 201,291.15 × 81,619.70 - Step 4: Simplify right side
134,107.70x = 16,429,323,275.66 - Step 5: Solve for x
x = 16,429,323,275.66/134,107.70 - Step 6: Final answer
x = 122,508.43
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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.