Finding the Fourth Proportional to 122,011.67, 168,376.11 and 68,296.70
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Solution
The fourth proportional to 122,011.67, 168,376.11 and 68,296.70 is: 94,249.45
Step by Step Solution
- Step 1: Write the proportion equation
122,011.67 : 168,376.11 = 68,296.70 : x - Step 2: Convert to fraction form
122,011.67/168,376.11 = 68,296.70/x - Step 3: Cross multiply
122,011.67x = 168,376.11 × 68,296.70 - Step 4: Simplify right side
122,011.67x = 11,499,532,671.84 - Step 5: Solve for x
x = 11,499,532,671.84/122,011.67 - Step 6: Final answer
x = 94,249.45
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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.