Finding the Fourth Proportional to 122,756.84, 169,398.84 and 68,311.70
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Solution
The fourth proportional to 122,756.84, 169,398.84 and 68,311.70 is: 94,267.03
Step by Step Solution
- Step 1: Write the proportion equation
122,756.84 : 169,398.84 = 68,311.70 : x - Step 2: Convert to fraction form
122,756.84/169,398.84 = 68,311.70/x - Step 3: Cross multiply
122,756.84x = 169,398.84 × 68,311.70 - Step 4: Simplify right side
122,756.84x = 11,571,922,738.43 - Step 5: Solve for x
x = 11,571,922,738.43/122,756.84 - Step 6: Final answer
x = 94,267.03
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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.