Finding the Fourth Proportional to 137,930.24, 190,343.12 and 76,676.02
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Solution
The fourth proportional to 137,930.24, 190,343.12 and 76,676.02 is: 105,812.56
Step by Step Solution
- Step 1: Write the proportion equation
137,930.24 : 190,343.12 = 76,676.02 : x - Step 2: Convert to fraction form
137,930.24/190,343.12 = 76,676.02/x - Step 3: Cross multiply
137,930.24x = 190,343.12 × 76,676.02 - Step 4: Simplify right side
137,930.24x = 14,594,752,016.74 - Step 5: Solve for x
x = 14,594,752,016.74/137,930.24 - Step 6: Final answer
x = 105,812.56
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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.