Finding the Fourth Proportional to 131,806.74, 197,510.58 and 87,274.02
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Solution
The fourth proportional to 131,806.74, 197,510.58 and 87,274.02 is: 130,778.91
Step by Step Solution
- Step 1: Write the proportion equation
131,806.74 : 197,510.58 = 87,274.02 : x - Step 2: Convert to fraction form
131,806.74/197,510.58 = 87,274.02/x - Step 3: Cross multiply
131,806.74x = 197,510.58 × 87,274.02 - Step 4: Simplify right side
131,806.74x = 17,237,542,309.13 - Step 5: Solve for x
x = 17,237,542,309.13/131,806.74 - Step 6: Final answer
x = 130,778.91
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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.