Finding the Fourth Proportional to 121,993.98, 168,351.67 and 68,279.00
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Solution
The fourth proportional to 121,993.98, 168,351.67 and 68,279.00 is: 94,225.00
Step by Step Solution
- Step 1: Write the proportion equation
121,993.98 : 168,351.67 = 68,279.00 : x - Step 2: Convert to fraction form
121,993.98/168,351.67 = 68,279.00/x - Step 3: Cross multiply
121,993.98x = 168,351.67 × 68,279.00 - Step 4: Simplify right side
121,993.98x = 11,494,882,834.17 - Step 5: Solve for x
x = 11,494,882,834.17/121,993.98 - Step 6: Final answer
x = 94,225.00
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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.