Finding the Fourth Proportional to 140,077.14, 193,306.44 and 76,415.19
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Solution
The fourth proportional to 140,077.14, 193,306.44 and 76,415.19 is: 105,452.95
Step by Step Solution
- Step 1: Write the proportion equation
140,077.14 : 193,306.44 = 76,415.19 : x - Step 2: Convert to fraction form
140,077.14/193,306.44 = 76,415.19/x - Step 3: Cross multiply
140,077.14x = 193,306.44 × 76,415.19 - Step 4: Simplify right side
140,077.14x = 14,771,548,340.82 - Step 5: Solve for x
x = 14,771,548,340.82/140,077.14 - Step 6: Final answer
x = 105,452.95
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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.