Finding the Fourth Proportional to 115,291.26, 159,137.47 and 67,560.12
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Solution
The fourth proportional to 115,291.26, 159,137.47 and 67,560.12 is: 93,253.79
Step by Step Solution
- Step 1: Write the proportion equation
115,291.26 : 159,137.47 = 67,560.12 : x - Step 2: Convert to fraction form
115,291.26/159,137.47 = 67,560.12/x - Step 3: Cross multiply
115,291.26x = 159,137.47 × 67,560.12 - Step 4: Simplify right side
115,291.26x = 10,751,346,569.70 - Step 5: Solve for x
x = 10,751,346,569.70/115,291.26 - Step 6: Final answer
x = 93,253.79
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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.