Finding the Fourth Proportional to 140,116.41, 193,364.91 and 79,695.75
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Solution
The fourth proportional to 140,116.41, 193,364.91 and 79,695.75 is: 109,982.56
Step by Step Solution
- Step 1: Write the proportion equation
140,116.41 : 193,364.91 = 79,695.75 : x - Step 2: Convert to fraction form
140,116.41/193,364.91 = 79,695.75/x - Step 3: Cross multiply
140,116.41x = 193,364.91 × 79,695.75 - Step 4: Simplify right side
140,116.41x = 15,410,361,526.13 - Step 5: Solve for x
x = 15,410,361,526.13/140,116.41 - Step 6: Final answer
x = 109,982.56
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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.