Finding the Fourth Proportional to 140,135.23, 193,390.73 and 76,477.11
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Solution
The fourth proportional to 140,135.23, 193,390.73 and 76,477.11 is: 105,540.66
Step by Step Solution
- Step 1: Write the proportion equation
140,135.23 : 193,390.73 = 76,477.11 : x - Step 2: Convert to fraction form
140,135.23/193,390.73 = 76,477.11/x - Step 3: Cross multiply
140,135.23x = 193,390.73 × 76,477.11 - Step 4: Simplify right side
140,135.23x = 14,789,964,131.19 - Step 5: Solve for x
x = 14,789,964,131.19/140,135.23 - Step 6: Final answer
x = 105,540.66
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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.