Finding the Fourth Proportional to 187,660.62, 258,971.70 and 102,777.66
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Solution
The fourth proportional to 187,660.62, 258,971.70 and 102,777.66 is: 141,833.20
Step by Step Solution
- Step 1: Write the proportion equation
187,660.62 : 258,971.70 = 102,777.66 : x - Step 2: Convert to fraction form
187,660.62/258,971.70 = 102,777.66/x - Step 3: Cross multiply
187,660.62x = 258,971.70 × 102,777.66 - Step 4: Simplify right side
187,660.62x = 26,616,505,332.22 - Step 5: Solve for x
x = 26,616,505,332.22/187,660.62 - Step 6: Final answer
x = 141,833.20
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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.