Finding the Fourth Proportional to 122,053.20, 183,811.20 and 107,422.08
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Solution
The fourth proportional to 122,053.20, 183,811.20 and 107,422.08 is: 161,776.84
Step by Step Solution
- Step 1: Write the proportion equation
122,053.20 : 183,811.20 = 107,422.08 : x - Step 2: Convert to fraction form
122,053.20/183,811.20 = 107,422.08/x - Step 3: Cross multiply
122,053.20x = 183,811.20 × 107,422.08 - Step 4: Simplify right side
122,053.20x = 19,745,381,431.30 - Step 5: Solve for x
x = 19,745,381,431.30/122,053.20 - Step 6: Final answer
x = 161,776.84
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.