Finding the Fourth Proportional to 130,529.91, 180,163.95 and 80,199.75
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Solution
The fourth proportional to 130,529.91, 180,163.95 and 80,199.75 is: 110,695.73
Step by Step Solution
- Step 1: Write the proportion equation
130,529.91 : 180,163.95 = 80,199.75 : x - Step 2: Convert to fraction form
130,529.91/180,163.95 = 80,199.75/x - Step 3: Cross multiply
130,529.91x = 180,163.95 × 80,199.75 - Step 4: Simplify right side
130,529.91x = 14,449,103,749.01 - Step 5: Solve for x
x = 14,449,103,749.01/130,529.91 - Step 6: Final answer
x = 110,695.73
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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.