Finding the Fourth Proportional to 122,922.66, 169,636.44 and 69,209.57
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Solution
The fourth proportional to 122,922.66, 169,636.44 and 69,209.57 is: 95,510.99
Step by Step Solution
- Step 1: Write the proportion equation
122,922.66 : 169,636.44 = 69,209.57 : x - Step 2: Convert to fraction form
122,922.66/169,636.44 = 69,209.57/x - Step 3: Cross multiply
122,922.66x = 169,636.44 × 69,209.57 - Step 4: Simplify right side
122,922.66x = 11,740,465,752.36 - Step 5: Solve for x
x = 11,740,465,752.36/122,922.66 - Step 6: Final answer
x = 95,510.99
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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.