Finding the Fourth Proportional to 140,865.06, 194,393.40 and 76,336.09
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Solution
The fourth proportional to 140,865.06, 194,393.40 and 76,336.09 is: 105,343.59
Step by Step Solution
- Step 1: Write the proportion equation
140,865.06 : 194,393.40 = 76,336.09 : x - Step 2: Convert to fraction form
140,865.06/194,393.40 = 76,336.09/x - Step 3: Cross multiply
140,865.06x = 194,393.40 × 76,336.09 - Step 4: Simplify right side
140,865.06x = 14,839,231,105.84 - Step 5: Solve for x
x = 14,839,231,105.84/140,865.06 - Step 6: Final answer
x = 105,343.59
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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.