Finding the Fourth Proportional to 122,477.76, 169,027.68 and 68,036.31
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Solution
The fourth proportional to 122,477.76, 169,027.68 and 68,036.31 is: 93,894.76
Step by Step Solution
- Step 1: Write the proportion equation
122,477.76 : 169,027.68 = 68,036.31 : x - Step 2: Convert to fraction form
122,477.76/169,027.68 = 68,036.31/x - Step 3: Cross multiply
122,477.76x = 169,027.68 × 68,036.31 - Step 4: Simplify right side
122,477.76x = 11,500,019,635.06 - Step 5: Solve for x
x = 11,500,019,635.06/122,477.76 - Step 6: Final answer
x = 93,894.76
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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.