Finding the Fourth Proportional to 125,890.08, 188,657.12 and 69,755.87
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Solution
The fourth proportional to 125,890.08, 188,657.12 and 69,755.87 is: 104,535.16
Step by Step Solution
- Step 1: Write the proportion equation
125,890.08 : 188,657.12 = 69,755.87 : x - Step 2: Convert to fraction form
125,890.08/188,657.12 = 69,755.87/x - Step 3: Cross multiply
125,890.08x = 188,657.12 × 69,755.87 - Step 4: Simplify right side
125,890.08x = 13,159,940,245.23 - Step 5: Solve for x
x = 13,159,940,245.23/125,890.08 - Step 6: Final answer
x = 104,535.16
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.