Finding the Fourth Proportional to 122,352.14, 168,830.79 and 68,629.70
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Solution
The fourth proportional to 122,352.14, 168,830.79 and 68,629.70 is: 94,700.48
Step by Step Solution
- Step 1: Write the proportion equation
122,352.14 : 168,830.79 = 68,629.70 : x - Step 2: Convert to fraction form
122,352.14/168,830.79 = 68,629.70/x - Step 3: Cross multiply
122,352.14x = 168,830.79 × 68,629.70 - Step 4: Simplify right side
122,352.14x = 11,586,806,468.46 - Step 5: Solve for x
x = 11,586,806,468.46/122,352.14 - Step 6: Final answer
x = 94,700.48
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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.