Finding the Fourth Proportional to 134,215.11, 201,355.61 and 66,778.97
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Solution
The fourth proportional to 134,215.11, 201,355.61 and 66,778.97 is: 100,184.84
Step by Step Solution
- Step 1: Write the proportion equation
134,215.11 : 201,355.61 = 66,778.97 : x - Step 2: Convert to fraction form
134,215.11/201,355.61 = 66,778.97/x - Step 3: Cross multiply
134,215.11x = 201,355.61 × 66,778.97 - Step 4: Simplify right side
134,215.11x = 13,446,318,898.85 - Step 5: Solve for x
x = 13,446,318,898.85/134,215.11 - Step 6: Final answer
x = 100,184.84
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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.