Finding the Fourth Proportional to 122,613.97, 183,821.70 and 38,330.74
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Solution
The fourth proportional to 122,613.97, 183,821.70 and 38,330.74 is: 57,465.08
Step by Step Solution
- Step 1: Write the proportion equation
122,613.97 : 183,821.70 = 38,330.74 : x - Step 2: Convert to fraction form
122,613.97/183,821.70 = 38,330.74/x - Step 3: Cross multiply
122,613.97x = 183,821.70 × 38,330.74 - Step 4: Simplify right side
122,613.97x = 7,046,021,789.06 - Step 5: Solve for x
x = 7,046,021,789.06/122,613.97 - Step 6: Final answer
x = 57,465.08
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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.