Finding the Fourth Proportional to 136,295.80, 188,088.18 and 75,865.14
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Solution
The fourth proportional to 136,295.80, 188,088.18 and 75,865.14 is: 104,693.88
Step by Step Solution
- Step 1: Write the proportion equation
136,295.80 : 188,088.18 = 75,865.14 : x - Step 2: Convert to fraction form
136,295.80/188,088.18 = 75,865.14/x - Step 3: Cross multiply
136,295.80x = 188,088.18 × 75,865.14 - Step 4: Simplify right side
136,295.80x = 14,269,336,108.05 - Step 5: Solve for x
x = 14,269,336,108.05/136,295.80 - Step 6: Final answer
x = 104,693.88
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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.