Finding the Fourth Proportional to 122,380.75, 183,582.06 and 38,141.63
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Solution
The fourth proportional to 122,380.75, 183,582.06 and 38,141.63 is: 57,215.85
Step by Step Solution
- Step 1: Write the proportion equation
122,380.75 : 183,582.06 = 38,141.63 : x - Step 2: Convert to fraction form
122,380.75/183,582.06 = 38,141.63/x - Step 3: Cross multiply
122,380.75x = 183,582.06 × 38,141.63 - Step 4: Simplify right side
122,380.75x = 7,002,117,946.22 - Step 5: Solve for x
x = 7,002,117,946.22/122,380.75 - Step 6: Final answer
x = 57,215.85
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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.