Finding the Fourth Proportional to 104,930.20, 157,395.30 and 82,811.80
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Solution
The fourth proportional to 104,930.20, 157,395.30 and 82,811.80 is: 124,217.70
Step by Step Solution
- Step 1: Write the proportion equation
104,930.20 : 157,395.30 = 82,811.80 : x - Step 2: Convert to fraction form
104,930.20/157,395.30 = 82,811.80/x - Step 3: Cross multiply
104,930.20x = 157,395.30 × 82,811.80 - Step 4: Simplify right side
104,930.20x = 13,034,188,104.54 - Step 5: Solve for x
x = 13,034,188,104.54/104,930.20 - Step 6: Final answer
x = 124,217.70
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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.