Finding the Fourth Proportional to 140,765.19, 194,259.12 and 80,334.63
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Solution
The fourth proportional to 140,765.19, 194,259.12 and 80,334.63 is: 110,863.59
Step by Step Solution
- Step 1: Write the proportion equation
140,765.19 : 194,259.12 = 80,334.63 : x - Step 2: Convert to fraction form
140,765.19/194,259.12 = 80,334.63/x - Step 3: Cross multiply
140,765.19x = 194,259.12 × 80,334.63 - Step 4: Simplify right side
140,765.19x = 15,605,734,529.33 - Step 5: Solve for x
x = 15,605,734,529.33/140,765.19 - Step 6: Final answer
x = 110,863.59
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1.5x scale
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.