Finding the Fourth Proportional to 141,457.07, 195,212.69 and 81,027.68
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Solution
The fourth proportional to 141,457.07, 195,212.69 and 81,027.68 is: 111,819.31
Step by Step Solution
- Step 1: Write the proportion equation
141,457.07 : 195,212.69 = 81,027.68 : x - Step 2: Convert to fraction form
141,457.07/195,212.69 = 81,027.68/x - Step 3: Cross multiply
141,457.07x = 195,212.69 × 81,027.68 - Step 4: Simplify right side
141,457.07x = 15,817,631,377.26 - Step 5: Solve for x
x = 15,817,631,377.26/141,457.07 - Step 6: Final answer
x = 111,819.31
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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.