Finding the Fourth Proportional to 122,828.43, 183,947.39 and 70,077.99
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Solution
The fourth proportional to 122,828.43, 183,947.39 and 70,077.99 is: 104,948.53
Step by Step Solution
- Step 1: Write the proportion equation
122,828.43 : 183,947.39 = 70,077.99 : x - Step 2: Convert to fraction form
122,828.43/183,947.39 = 70,077.99/x - Step 3: Cross multiply
122,828.43x = 183,947.39 × 70,077.99 - Step 4: Simplify right side
122,828.43x = 12,890,663,532.14 - Step 5: Solve for x
x = 12,890,663,532.14/122,828.43 - Step 6: Final answer
x = 104,948.53
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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.