Finding the Fourth Proportional to 131,628.99, 181,648.02 and 71,199.63
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Solution
The fourth proportional to 131,628.99, 181,648.02 and 71,199.63 is: 98,255.50
Step by Step Solution
- Step 1: Write the proportion equation
131,628.99 : 181,648.02 = 71,199.63 : x - Step 2: Convert to fraction form
131,628.99/181,648.02 = 71,199.63/x - Step 3: Cross multiply
131,628.99x = 181,648.02 × 71,199.63 - Step 4: Simplify right side
131,628.99x = 12,933,271,814.23 - Step 5: Solve for x
x = 12,933,271,814.23/131,628.99 - Step 6: Final answer
x = 98,255.50
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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.