Finding the Fourth Proportional to 122,792.99, 169,450.65 and 74,423.54
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Solution
The fourth proportional to 122,792.99, 169,450.65 and 74,423.54 is: 102,702.26
Step by Step Solution
- Step 1: Write the proportion equation
122,792.99 : 169,450.65 = 74,423.54 : x - Step 2: Convert to fraction form
122,792.99/169,450.65 = 74,423.54/x - Step 3: Cross multiply
122,792.99x = 169,450.65 × 74,423.54 - Step 4: Simplify right side
122,792.99x = 12,611,117,651.93 - Step 5: Solve for x
x = 12,611,117,651.93/122,792.99 - Step 6: Final answer
x = 102,702.26
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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.