Finding the Fourth Proportional to 140,215.68, 193,502.52 and 79,795.44
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Solution
The fourth proportional to 140,215.68, 193,502.52 and 79,795.44 is: 110,120.49
Step by Step Solution
- Step 1: Write the proportion equation
140,215.68 : 193,502.52 = 79,795.44 : x - Step 2: Convert to fraction form
140,215.68/193,502.52 = 79,795.44/x - Step 3: Cross multiply
140,215.68x = 193,502.52 × 79,795.44 - Step 4: Simplify right side
140,215.68x = 15,440,618,724.51 - Step 5: Solve for x
x = 15,440,618,724.51/140,215.68 - Step 6: Final answer
x = 110,120.49
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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.