Finding the Fourth Proportional to 126,083.22, 188,927.73 and 79,237.68
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Solution
The fourth proportional to 126,083.22, 188,927.73 and 79,237.68 is: 118,732.65
Step by Step Solution
- Step 1: Write the proportion equation
126,083.22 : 188,927.73 = 79,237.68 : x - Step 2: Convert to fraction form
126,083.22/188,927.73 = 79,237.68/x - Step 3: Cross multiply
126,083.22x = 188,927.73 × 79,237.68 - Step 4: Simplify right side
126,083.22x = 14,970,195,012.87 - Step 5: Solve for x
x = 14,970,195,012.87/126,083.22 - Step 6: Final answer
x = 118,732.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.