Finding the Fourth Proportional to 140,056.62, 193,276.44 and 76,393.05
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Solution
The fourth proportional to 140,056.62, 193,276.44 and 76,393.05 is: 105,421.48
Step by Step Solution
- Step 1: Write the proportion equation
140,056.62 : 193,276.44 = 76,393.05 : x - Step 2: Convert to fraction form
140,056.62/193,276.44 = 76,393.05/x - Step 3: Cross multiply
140,056.62x = 193,276.44 × 76,393.05 - Step 4: Simplify right side
140,056.62x = 14,764,976,019.96 - Step 5: Solve for x
x = 14,764,976,019.96/140,056.62 - Step 6: Final answer
x = 105,421.48
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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.