Finding the Fourth Proportional to 122,751.63, 169,399.07 and 74,994.84
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Solution
The fourth proportional to 122,751.63, 169,399.07 and 74,994.84 is: 103,493.99
Step by Step Solution
- Step 1: Write the proportion equation
122,751.63 : 169,399.07 = 74,994.84 : x - Step 2: Convert to fraction form
122,751.63/169,399.07 = 74,994.84/x - Step 3: Cross multiply
122,751.63x = 169,399.07 × 74,994.84 - Step 4: Simplify right side
122,751.63x = 12,704,056,150.80 - Step 5: Solve for x
x = 12,704,056,150.80/122,751.63 - Step 6: Final answer
x = 103,493.99
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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.