Finding the Fourth Proportional to 140,479.26, 194,079.69 and 117,783.06
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Solution
The fourth proportional to 140,479.26, 194,079.69 and 117,783.06 is: 162,723.66
Step by Step Solution
- Step 1: Write the proportion equation
140,479.26 : 194,079.69 = 117,783.06 : x - Step 2: Convert to fraction form
140,479.26/194,079.69 = 117,783.06/x - Step 3: Cross multiply
140,479.26x = 194,079.69 × 117,783.06 - Step 4: Simplify right side
140,479.26x = 22,859,299,772.05 - Step 5: Solve for x
x = 22,859,299,772.05/140,479.26 - Step 6: Final answer
x = 162,723.66
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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.