Finding the Fourth Proportional to 122,354.88, 183,584.16 and 66,886.08
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Solution
The fourth proportional to 122,354.88, 183,584.16 and 66,886.08 is: 100,357.46
Step by Step Solution
- Step 1: Write the proportion equation
122,354.88 : 183,584.16 = 66,886.08 : x - Step 2: Convert to fraction form
122,354.88/183,584.16 = 66,886.08/x - Step 3: Cross multiply
122,354.88x = 183,584.16 × 66,886.08 - Step 4: Simplify right side
122,354.88x = 12,279,224,812.49 - Step 5: Solve for x
x = 12,279,224,812.49/122,354.88 - Step 6: Final answer
x = 100,357.46
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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.