Finding the Fourth Proportional to 122,356.60, 183,601.77 and 47,479.68
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Solution
The fourth proportional to 122,356.60, 183,601.77 and 47,479.68 is: 71,245.47
Step by Step Solution
- Step 1: Write the proportion equation
122,356.60 : 183,601.77 = 47,479.68 : x - Step 2: Convert to fraction form
122,356.60/183,601.77 = 47,479.68/x - Step 3: Cross multiply
122,356.60x = 183,601.77 × 47,479.68 - Step 4: Simplify right side
122,356.60x = 8,717,353,287.03 - Step 5: Solve for x
x = 8,717,353,287.03/122,356.60 - Step 6: Final answer
x = 71,245.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.