Finding the Fourth Proportional to 122,691.49, 184,001.68 and 47,794.94
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Solution
The fourth proportional to 122,691.49, 184,001.68 and 47,794.94 is: 71,678.56
Step by Step Solution
- Step 1: Write the proportion equation
122,691.49 : 184,001.68 = 47,794.94 : x - Step 2: Convert to fraction form
122,691.49/184,001.68 = 47,794.94/x - Step 3: Cross multiply
122,691.49x = 184,001.68 × 47,794.94 - Step 4: Simplify right side
122,691.49x = 8,794,349,851.40 - Step 5: Solve for x
x = 8,794,349,851.40/122,691.49 - Step 6: Final answer
x = 71,678.56
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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.