Finding the Fourth Proportional to 191,144.46, 263,785.10 and 105,098.99
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Solution
The fourth proportional to 191,144.46, 263,785.10 and 105,098.99 is: 145,039.77
Step by Step Solution
- Step 1: Write the proportion equation
191,144.46 : 263,785.10 = 105,098.99 : x - Step 2: Convert to fraction form
191,144.46/263,785.10 = 105,098.99/x - Step 3: Cross multiply
191,144.46x = 263,785.10 × 105,098.99 - Step 4: Simplify right side
191,144.46x = 27,723,547,721.02 - Step 5: Solve for x
x = 27,723,547,721.02/191,144.46 - Step 6: Final answer
x = 145,039.77
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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.