Finding the Fourth Proportional to 122,036.99, 168,390.99 and 76,682.85
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Solution
The fourth proportional to 122,036.99, 168,390.99 and 76,682.85 is: 105,809.73
Step by Step Solution
- Step 1: Write the proportion equation
122,036.99 : 168,390.99 = 76,682.85 : x - Step 2: Convert to fraction form
122,036.99/168,390.99 = 76,682.85/x - Step 3: Cross multiply
122,036.99x = 168,390.99 × 76,682.85 - Step 4: Simplify right side
122,036.99x = 12,912,701,027.52 - Step 5: Solve for x
x = 12,912,701,027.52/122,036.99 - Step 6: Final answer
x = 105,809.73
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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.