Finding the Fourth Proportional to 122,347.68, 168,768.24 and 76,954.08
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Solution
The fourth proportional to 122,347.68, 168,768.24 and 76,954.08 is: 106,151.62
Step by Step Solution
- Step 1: Write the proportion equation
122,347.68 : 168,768.24 = 76,954.08 : x - Step 2: Convert to fraction form
122,347.68/168,768.24 = 76,954.08/x - Step 3: Cross multiply
122,347.68x = 168,768.24 × 76,954.08 - Step 4: Simplify right side
122,347.68x = 12,987,404,642.42 - Step 5: Solve for x
x = 12,987,404,642.42/122,347.68 - Step 6: Final answer
x = 106,151.62
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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.