Finding the Fourth Proportional to 122,574.67, 169,143.95 and 68,868.63
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Solution
The fourth proportional to 122,574.67, 169,143.95 and 68,868.63 is: 95,033.60
Step by Step Solution
- Step 1: Write the proportion equation
122,574.67 : 169,143.95 = 68,868.63 : x - Step 2: Convert to fraction form
122,574.67/169,143.95 = 68,868.63/x - Step 3: Cross multiply
122,574.67x = 169,143.95 × 68,868.63 - Step 4: Simplify right side
122,574.67x = 11,648,711,894.07 - Step 5: Solve for x
x = 11,648,711,894.07/122,574.67 - Step 6: Final answer
x = 95,033.60
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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.