Finding the Fourth Proportional to 122,184.18, 168,605.65 and 67,735.81
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Solution
The fourth proportional to 122,184.18, 168,605.65 and 67,735.81 is: 93,470.70
Step by Step Solution
- Step 1: Write the proportion equation
122,184.18 : 168,605.65 = 67,735.81 : x - Step 2: Convert to fraction form
122,184.18/168,605.65 = 67,735.81/x - Step 3: Cross multiply
122,184.18x = 168,605.65 × 67,735.81 - Step 4: Simplify right side
122,184.18x = 11,420,640,568.75 - Step 5: Solve for x
x = 11,420,640,568.75/122,184.18 - Step 6: Final answer
x = 93,470.70
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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.