Finding the Fourth Proportional to 141,438.84, 195,169.24 and 81,005.88
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Solution
The fourth proportional to 141,438.84, 195,169.24 and 81,005.88 is: 111,778.75
Step by Step Solution
- Step 1: Write the proportion equation
141,438.84 : 195,169.24 = 81,005.88 : x - Step 2: Convert to fraction form
141,438.84/195,169.24 = 81,005.88/x - Step 3: Cross multiply
141,438.84x = 195,169.24 × 81,005.88 - Step 4: Simplify right side
141,438.84x = 15,809,856,035.13 - Step 5: Solve for x
x = 15,809,856,035.13/141,438.84 - Step 6: Final answer
x = 111,778.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.