Finding the Fourth Proportional to 122,488.61, 183,639.49 and 55,882.17
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Solution
The fourth proportional to 122,488.61, 183,639.49 and 55,882.17 is: 83,780.63
Step by Step Solution
- Step 1: Write the proportion equation
122,488.61 : 183,639.49 = 55,882.17 : x - Step 2: Convert to fraction form
122,488.61/183,639.49 = 55,882.17/x - Step 3: Cross multiply
122,488.61x = 183,639.49 × 55,882.17 - Step 4: Simplify right side
122,488.61x = 10,262,173,059.19 - Step 5: Solve for x
x = 10,262,173,059.19/122,488.61 - Step 6: Final answer
x = 83,780.63
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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.