Finding the Fourth Proportional to 131,729.99, 197,595.45 and 31,889.99
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Solution
The fourth proportional to 131,729.99, 197,595.45 and 31,889.99 is: 47,835.09
Step by Step Solution
- Step 1: Write the proportion equation
131,729.99 : 197,595.45 = 31,889.99 : x - Step 2: Convert to fraction form
131,729.99/197,595.45 = 31,889.99/x - Step 3: Cross multiply
131,729.99x = 197,595.45 × 31,889.99 - Step 4: Simplify right side
131,729.99x = 6,301,315,936.57 - Step 5: Solve for x
x = 6,301,315,936.57/131,729.99 - Step 6: Final answer
x = 47,835.09
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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.