Finding the Fourth Proportional to 156,493.08, 215,708.94 and 122,442.84
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Solution
The fourth proportional to 156,493.08, 215,708.94 and 122,442.84 is: 168,774.33
Step by Step Solution
- Step 1: Write the proportion equation
156,493.08 : 215,708.94 = 122,442.84 : x - Step 2: Convert to fraction form
156,493.08/215,708.94 = 122,442.84/x - Step 3: Cross multiply
156,493.08x = 215,708.94 × 122,442.84 - Step 4: Simplify right side
156,493.08x = 26,412,015,226.99 - Step 5: Solve for x
x = 26,412,015,226.99/156,493.08 - Step 6: Final answer
x = 168,774.33
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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.