Finding the Fourth Proportional to 122,138.19, 183,293.82 and 55,586.88
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Solution
The fourth proportional to 122,138.19, 183,293.82 and 55,586.88 is: 83,419.70
Step by Step Solution
- Step 1: Write the proportion equation
122,138.19 : 183,293.82 = 55,586.88 : x - Step 2: Convert to fraction form
122,138.19/183,293.82 = 55,586.88/x - Step 3: Cross multiply
122,138.19x = 183,293.82 × 55,586.88 - Step 4: Simplify right side
122,138.19x = 10,188,731,577.08 - Step 5: Solve for x
x = 10,188,731,577.08/122,138.19 - Step 6: Final answer
x = 83,419.70
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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.