Finding the Fourth Proportional to 159,105.68, 219,570.76 and 91,122.96
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Solution
The fourth proportional to 159,105.68, 219,570.76 and 91,122.96 is: 125,752.50
Step by Step Solution
- Step 1: Write the proportion equation
159,105.68 : 219,570.76 = 91,122.96 : x - Step 2: Convert to fraction form
159,105.68/219,570.76 = 91,122.96/x - Step 3: Cross multiply
159,105.68x = 219,570.76 × 91,122.96 - Step 4: Simplify right side
159,105.68x = 20,007,937,580.65 - Step 5: Solve for x
x = 20,007,937,580.65/159,105.68 - Step 6: Final answer
x = 125,752.50
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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.