Finding the Fourth Proportional to 122,251.08, 168,706.76 and 71,259.96
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Solution
The fourth proportional to 122,251.08, 168,706.76 and 71,259.96 is: 98,338.90
Step by Step Solution
- Step 1: Write the proportion equation
122,251.08 : 168,706.76 = 71,259.96 : x - Step 2: Convert to fraction form
122,251.08/168,706.76 = 71,259.96/x - Step 3: Cross multiply
122,251.08x = 168,706.76 × 71,259.96 - Step 4: Simplify right side
122,251.08x = 12,022,036,613.03 - Step 5: Solve for x
x = 12,022,036,613.03/122,251.08 - Step 6: Final answer
x = 98,338.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.