Finding the Fourth Proportional to 140,305.41, 193,626.68 and 76,643.64
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Solution
The fourth proportional to 140,305.41, 193,626.68 and 76,643.64 is: 105,771.07
Step by Step Solution
- Step 1: Write the proportion equation
140,305.41 : 193,626.68 = 76,643.64 : x - Step 2: Convert to fraction form
140,305.41/193,626.68 = 76,643.64/x - Step 3: Cross multiply
140,305.41x = 193,626.68 × 76,643.64 - Step 4: Simplify right side
140,305.41x = 14,840,253,173.10 - Step 5: Solve for x
x = 14,840,253,173.10/140,305.41 - Step 6: Final answer
x = 105,771.07
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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.