Finding the Fourth Proportional to 122,725.08, 183,899.04 and 72,705.68
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Solution
The fourth proportional to 122,725.08, 183,899.04 and 72,705.68 is: 108,946.80
Step by Step Solution
- Step 1: Write the proportion equation
122,725.08 : 183,899.04 = 72,705.68 : x - Step 2: Convert to fraction form
122,725.08/183,899.04 = 72,705.68/x - Step 3: Cross multiply
122,725.08x = 183,899.04 × 72,705.68 - Step 4: Simplify right side
122,725.08x = 13,370,504,754.55 - Step 5: Solve for x
x = 13,370,504,754.55/122,725.08 - Step 6: Final answer
x = 108,946.80
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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.