Finding the Fourth Proportional to 122,354.56, 168,862.08 and 68,654.08
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Solution
The fourth proportional to 122,354.56, 168,862.08 and 68,654.08 is: 94,749.81
Step by Step Solution
- Step 1: Write the proportion equation
122,354.56 : 168,862.08 = 68,654.08 : x - Step 2: Convert to fraction form
122,354.56/168,862.08 = 68,654.08/x - Step 3: Cross multiply
122,354.56x = 168,862.08 × 68,654.08 - Step 4: Simplify right side
122,354.56x = 11,593,070,749.29 - Step 5: Solve for x
x = 11,593,070,749.29/122,354.56 - Step 6: Final answer
x = 94,749.81
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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.