Finding the Fourth Proportional to 141,936.91, 195,866.34 and 81,464.99
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Solution
The fourth proportional to 141,936.91, 195,866.34 and 81,464.99 is: 112,417.89
Step by Step Solution
- Step 1: Write the proportion equation
141,936.91 : 195,866.34 = 81,464.99 : x - Step 2: Convert to fraction form
141,936.91/195,866.34 = 81,464.99/x - Step 3: Cross multiply
141,936.91x = 195,866.34 × 81,464.99 - Step 4: Simplify right side
141,936.91x = 15,956,248,042.78 - Step 5: Solve for x
x = 15,956,248,042.78/141,936.91 - Step 6: Final answer
x = 112,417.89
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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.