Finding the Fourth Proportional to 141,709.10, 195,544.08 and 87,252.62
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Solution
The fourth proportional to 141,709.10, 195,544.08 and 87,252.62 is: 120,399.70
Step by Step Solution
- Step 1: Write the proportion equation
141,709.10 : 195,544.08 = 87,252.62 : x - Step 2: Convert to fraction form
141,709.10/195,544.08 = 87,252.62/x - Step 3: Cross multiply
141,709.10x = 195,544.08 × 87,252.62 - Step 4: Simplify right side
141,709.10x = 17,061,732,327.77 - Step 5: Solve for x
x = 17,061,732,327.77/141,709.10 - Step 6: Final answer
x = 120,399.70
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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.