Finding the Fourth Proportional to 115,291.76, 159,138.16 and 67,560.62
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Solution
The fourth proportional to 115,291.76, 159,138.16 and 67,560.62 is: 93,254.48
Step by Step Solution
- Step 1: Write the proportion equation
115,291.76 : 159,138.16 = 67,560.62 : x - Step 2: Convert to fraction form
115,291.76/159,138.16 = 67,560.62/x - Step 3: Cross multiply
115,291.76x = 159,138.16 × 67,560.62 - Step 4: Simplify right side
115,291.76x = 10,751,472,755.26 - Step 5: Solve for x
x = 10,751,472,755.26/115,291.76 - Step 6: Final answer
x = 93,254.48
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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.