Finding the Fourth Proportional to 134,379.88, 201,126.79 and 74,315.95
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Solution
The fourth proportional to 134,379.88, 201,126.79 and 74,315.95 is: 111,228.92
Step by Step Solution
- Step 1: Write the proportion equation
134,379.88 : 201,126.79 = 74,315.95 : x - Step 2: Convert to fraction form
134,379.88/201,126.79 = 74,315.95/x - Step 3: Cross multiply
134,379.88x = 201,126.79 × 74,315.95 - Step 4: Simplify right side
134,379.88x = 14,946,928,469.30 - Step 5: Solve for x
x = 14,946,928,469.30/134,379.88 - Step 6: Final answer
x = 111,228.92
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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.