Finding the Fourth Proportional to 159,199.65, 219,697.33 and 91,215.26
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Solution
The fourth proportional to 159,199.65, 219,697.33 and 91,215.26 is: 125,878.09
Step by Step Solution
- Step 1: Write the proportion equation
159,199.65 : 219,697.33 = 91,215.26 : x - Step 2: Convert to fraction form
159,199.65/219,697.33 = 91,215.26/x - Step 3: Cross multiply
159,199.65x = 219,697.33 × 91,215.26 - Step 4: Simplify right side
159,199.65x = 20,039,747,978.77 - Step 5: Solve for x
x = 20,039,747,978.77/159,199.65 - Step 6: Final answer
x = 125,878.09
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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.