Finding the Fourth Proportional to 122,252.21, 168,707.93 and 68,537.23
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Solution
The fourth proportional to 122,252.21, 168,707.93 and 68,537.23 is: 94,581.31
Step by Step Solution
- Step 1: Write the proportion equation
122,252.21 : 168,707.93 = 68,537.23 : x - Step 2: Convert to fraction form
122,252.21/168,707.93 = 68,537.23/x - Step 3: Cross multiply
122,252.21x = 168,707.93 × 68,537.23 - Step 4: Simplify right side
122,252.21x = 11,562,774,201.23 - Step 5: Solve for x
x = 11,562,774,201.23/122,252.21 - Step 6: Final answer
x = 94,581.31
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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.