Finding the Fourth Proportional to 134,169.20, 201,253.80 and 83,430.80
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Solution
The fourth proportional to 134,169.20, 201,253.80 and 83,430.80 is: 125,146.20
Step by Step Solution
- Step 1: Write the proportion equation
134,169.20 : 201,253.80 = 83,430.80 : x - Step 2: Convert to fraction form
134,169.20/201,253.80 = 83,430.80/x - Step 3: Cross multiply
134,169.20x = 201,253.80 × 83,430.80 - Step 4: Simplify right side
134,169.20x = 16,790,765,537.04 - Step 5: Solve for x
x = 16,790,765,537.04/134,169.20 - Step 6: Final answer
x = 125,146.20
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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.