Finding the Fourth Proportional to 115,366.08, 159,205.20 and 65,065.08
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Solution
The fourth proportional to 115,366.08, 159,205.20 and 65,065.08 is: 89,789.82
Step by Step Solution
- Step 1: Write the proportion equation
115,366.08 : 159,205.20 = 65,065.08 : x - Step 2: Convert to fraction form
115,366.08/159,205.20 = 65,065.08/x - Step 3: Cross multiply
115,366.08x = 159,205.20 × 65,065.08 - Step 4: Simplify right side
115,366.08x = 10,358,699,074.42 - Step 5: Solve for x
x = 10,358,699,074.42/115,366.08 - Step 6: Final answer
x = 89,789.82
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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.