Finding the Fourth Proportional to 187,519.39, 258,712.41 and 106,888.75
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Solution
The fourth proportional to 187,519.39, 258,712.41 and 106,888.75 is: 147,469.80
Step by Step Solution
- Step 1: Write the proportion equation
187,519.39 : 258,712.41 = 106,888.75 : x - Step 2: Convert to fraction form
187,519.39/258,712.41 = 106,888.75/x - Step 3: Cross multiply
187,519.39x = 258,712.41 × 106,888.75 - Step 4: Simplify right side
187,519.39x = 27,653,445,868.44 - Step 5: Solve for x
x = 27,653,445,868.44/187,519.39 - Step 6: Final answer
x = 147,469.80
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1.5x scale
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.