Finding the Fourth Proportional to 125,107.20, 187,660.80 and 116,812.80
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Solution
The fourth proportional to 125,107.20, 187,660.80 and 116,812.80 is: 175,219.20
Step by Step Solution
- Step 1: Write the proportion equation
125,107.20 : 187,660.80 = 116,812.80 : x - Step 2: Convert to fraction form
125,107.20/187,660.80 = 116,812.80/x - Step 3: Cross multiply
125,107.20x = 187,660.80 × 116,812.80 - Step 4: Simplify right side
125,107.20x = 21,921,183,498.24 - Step 5: Solve for x
x = 21,921,183,498.24/125,107.20 - Step 6: Final answer
x = 175,219.20
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1.5x scale
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.