Finding the Fourth Proportional to 122,789.13, 184,214.36 and 42,828.26
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Solution
The fourth proportional to 122,789.13, 184,214.36 and 42,828.26 is: 64,253.08
Step by Step Solution
- Step 1: Write the proportion equation
122,789.13 : 184,214.36 = 42,828.26 : x - Step 2: Convert to fraction form
122,789.13/184,214.36 = 42,828.26/x - Step 3: Cross multiply
122,789.13x = 184,214.36 × 42,828.26 - Step 4: Simplify right side
122,789.13x = 7,889,579,370.60 - Step 5: Solve for x
x = 7,889,579,370.60/122,789.13 - Step 6: Final answer
x = 64,253.08
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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.