Finding the Fourth Proportional to 138,643.35, 206,800.16 and 125,872.44
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Solution
The fourth proportional to 138,643.35, 206,800.16 and 125,872.44 is: 187,751.09
Step by Step Solution
- Step 1: Write the proportion equation
138,643.35 : 206,800.16 = 125,872.44 : x - Step 2: Convert to fraction form
138,643.35/206,800.16 = 125,872.44/x - Step 3: Cross multiply
138,643.35x = 206,800.16 × 125,872.44 - Step 4: Simplify right side
138,643.35x = 26,030,440,731.59 - Step 5: Solve for x
x = 26,030,440,731.59/138,643.35 - Step 6: Final answer
x = 187,751.09
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.