Finding the Fourth Proportional to 122,780.24, 169,451.72 and 69,067.52
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Solution
The fourth proportional to 122,780.24, 169,451.72 and 69,067.52 is: 95,321.61
Step by Step Solution
- Step 1: Write the proportion equation
122,780.24 : 169,451.72 = 69,067.52 : x - Step 2: Convert to fraction form
122,780.24/169,451.72 = 69,067.52/x - Step 3: Cross multiply
122,780.24x = 169,451.72 × 69,067.52 - Step 4: Simplify right side
122,780.24x = 11,703,610,060.13 - Step 5: Solve for x
x = 11,703,610,060.13/122,780.24 - Step 6: Final answer
x = 95,321.61
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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.