Finding the Fourth Proportional to 146,987.76, 202,842.84 and 79,919.60
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Solution
The fourth proportional to 146,987.76, 202,842.84 and 79,919.60 is: 110,288.90
Step by Step Solution
- Step 1: Write the proportion equation
146,987.76 : 202,842.84 = 79,919.60 : x - Step 2: Convert to fraction form
146,987.76/202,842.84 = 79,919.60/x - Step 3: Cross multiply
146,987.76x = 202,842.84 × 79,919.60 - Step 4: Simplify right side
146,987.76x = 16,211,118,635.66 - Step 5: Solve for x
x = 16,211,118,635.66/146,987.76 - Step 6: Final answer
x = 110,288.90
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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.