Finding the Fourth Proportional to 122,789.94, 169,449.84 and 69,074.95
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Solution
The fourth proportional to 122,789.94, 169,449.84 and 69,074.95 is: 95,323.28
Step by Step Solution
- Step 1: Write the proportion equation
122,789.94 : 169,449.84 = 69,074.95 : x - Step 2: Convert to fraction form
122,789.94/169,449.84 = 69,074.95/x - Step 3: Cross multiply
122,789.94x = 169,449.84 × 69,074.95 - Step 4: Simplify right side
122,789.94x = 11,704,739,225.51 - Step 5: Solve for x
x = 11,704,739,225.51/122,789.94 - Step 6: Final answer
x = 95,323.28
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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.