Finding the Fourth Proportional to 140,305.18, 193,625.40 and 76,647.08
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Solution
The fourth proportional to 140,305.18, 193,625.40 and 76,647.08 is: 105,775.29
Step by Step Solution
- Step 1: Write the proportion equation
140,305.18 : 193,625.40 = 76,647.08 : x - Step 2: Convert to fraction form
140,305.18/193,625.40 = 76,647.08/x - Step 3: Cross multiply
140,305.18x = 193,625.40 × 76,647.08 - Step 4: Simplify right side
140,305.18x = 14,840,821,523.83 - Step 5: Solve for x
x = 14,840,821,523.83/140,305.18 - Step 6: Final answer
x = 105,775.29
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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.