Finding the Fourth Proportional to 122,974.94, 169,348.08 and 106,834.88
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Solution
The fourth proportional to 122,974.94, 169,348.08 and 106,834.88 is: 147,121.70
Step by Step Solution
- Step 1: Write the proportion equation
122,974.94 : 169,348.08 = 106,834.88 : x - Step 2: Convert to fraction form
122,974.94/169,348.08 = 106,834.88/x - Step 3: Cross multiply
122,974.94x = 169,348.08 × 106,834.88 - Step 4: Simplify right side
122,974.94x = 18,092,281,805.03 - Step 5: Solve for x
x = 18,092,281,805.03/122,974.94 - Step 6: Final answer
x = 147,121.70
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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.